| A 總類 (General Works) |
AC |
總集、叢書、別集 (Collections. Series. Collected works) |
AE |
一般性百科全書 (Encyclopedias - General) |
AG |
字典及一般性參考書 (Dictionaries and other general reference books) |
AI |
索引 (Indexes - General) |
AM |
博物館、蒐集者與蒐集 (Museum - General. Collectors and collecting - General) |
AN |
報紙 (Newspapers) |
AP |
期刊 (Periodicals - General) |
AS |
學會 (Academies and learned societies - General) |
AY |
年鑑、曆書、名錄 (Yearbooks. Almanacs. Directories) |
AZ |
學術史、人文科學 (History of scholarship and learning. The humanities) |
|
| B 哲學、心理學、宗教 (Philosophy. Psychology. Religion) |
B |
哲學總論 (Philosophy - General) |
BC |
邏輯 (Logic) |
BD |
思辨哲學 (Speculative philosophy) |
BF |
心理學 (Psychology) |
BH |
美學 (Aesthetics) |
BJ |
倫理學、社會習俗、禮節 (Ethics. Social usages. Etiquette) |
BL-BX |
宗教 (Religions) |
|
| C 歷史學及相關科學 (Auxiliary Sciences of History) |
C |
歷史學及相關科學總論 (Auxiliary Sciences of History - General) |
CB |
文化史 (History of Civilization) |
CC |
考古學 (Archaeology - General) |
CD |
外交文書、檔案、印記 (Diplomatics. Archives. Seals) |
CE |
年表、曆書 (Technical Chronology. Calendar) |
CJ |
古錢學 (Numismatics) |
CN |
題銘、金石學 (Inscriptions. Epigraphy) |
CR |
紋章學 (Heraldry) |
CS |
系譜學 (Genealogy) |
CT |
傳記 (Biography) |
|
| D 古代史及世界各國史(美洲歷史除外) (History: General and Old World) |
D |
歷史總論 (History - General) |
DA-DR |
歐洲歷史 (Europe) |
DS |
亞洲歷史 (Asia) |
DT |
非洲歷史 (Africa) |
DU |
大洋洲歷史 (Oceania - South seas) |
DX |
吉普賽人歷史 (Gypsies) |
|
| E-F 美洲歷史 (History: America) |
|
| G 地理學、人類學、娛樂 (Geography. Anthropology. Recreation.) |
G |
地理學總論、地圖集、地圖 (Geography - General. Atlas. Maps) |
GA |
數學地理、製圖學 (Mathematical geography. Cartography) |
GB |
自然地理 (Physical geography) |
GC |
海洋學 (Oceanography) |
GE |
環境科學 (Environmental Sciences) |
GF |
人類生態學、人文地理學 (Human ecology. Anthropogeography) |
GN |
人類學 (Anthropology) |
GR |
民俗 (Folklore) |
GT |
一般風俗與習慣 (Manners and customs) |
GV |
娛樂、休閒 (Recreation. Leisure) |
|
| H 社會科學 (Social Sciences) |
H |
社會科學總論 (Social sciences - General) |
HA |
統計學 (Statistics) |
HB |
經濟理論、人口統計學 (Economic theory. Demography) |
HC-HD |
經濟史地 (Economics history and conditions) |
HE |
運輸與交通 (Transportation and communications) |
HF |
商業 (Commerce) |
HG |
財政 (Finance) |
HJ |
公共財政 (Public finance) |
HM |
社會學 (Sociology - General and theoretical) |
HN |
社會歷史、社會問題、社會改革 (Social history. Social problems. Social reform) |
HQ |
家庭、婚姻、婦女 (The family. Marriage. Woman) |
HS |
社會團體：秘密會社、慈善機構、俱樂部 (Societies: Secret, benevolent, etc. Clubs.) |
HT |
社團、階級、種族 (Communities. Classes. Races) |
HV |
社會病理學、社會福利、犯罪學 (Social pathology. Social and public welfare. Criminology) |
HX |
社會主義、共產主義、無政府主義 (Socialism. Communism. Anarchism) |
|
| J 政治學 (Political Science) |
J |
一般立法及行政公報 (General legislative and executive papers) |
JA |
選集及總論 (Collections and general works) |
JC |
政治理論 (Political theory. Theory of the state) |
JF |
政治制度與行政 (Political institutions and administration) |
JJ |
北美政治制度與行政 (North America) |
JK |
美國政治制度與行政 (United States) |
JL |
加拿大、拉丁美洲等政治制度與行政 (Canada, Latin America, etc.) |
JN |
歐洲政治制度與行政 (Europe) |
JQ |
亞洲、非洲、澳洲、大洋洲政治制度與行政 (Asia. Africa. Australia. Oceania) |
JS |
地方政府 (Local government) |
JV |
殖民地與殖民政策、移出與遷入 (Colonies and colonization. Emigration and immigration. International migration) |
JZ |
國際關係 (International relations) |
|
| K 法律 (Law) |
K |
法律總論 (Law - General) |
KB |
宗教法 (Religious Law) |
KD |
英國及愛爾蘭法律 (Law of the United Kingdom and Ireland) |
KE |
加拿大法律 (Law of Canada) |
KF |
美國法律 (Law of the United States) |
KG |
拉丁美洲法律 (Law of Latin America) |
KH |
南美洲法律 (Law of South America) |
KJ-KK |
歐洲法律 (Law of Europe) |
KL |
法律史、古東方 (History of Law. The Ancient Orient) |
KLA-KLW |
歐亞大陸法律 (Law of Eurasia) |
KM-KPW |
亞洲法律 (Law of Asia) |
KQ-KTZ |
非洲法律 (Law of Africa) |
KU-KWW |
太平洋區域法律 (Law of Pacific Area) |
KWX |
南極大陸法律 (Law of Antarctica) |
KZ |
國際法、國際條約 (Law of nations) |
KZA |
海洋法 (Law of the sea) |
KZD |
領土、太空法 (Space Law. Law of outer space) |
|
| L 教育 (Education) |
L |
教育總論 (Education - General) |
LA |
教育史 (History of education) |
LB |
教育理論與實務 (Theory and practice of education) |
LC |
特殊教育 (Special aspects of education) |
LD-LG |
個別教育機構：大學、學院及中小學 (Individual institutions: universities, colleges, and schools) |
LH |
學院與學校雜誌、報紙 (College and school magazines and papers) |
LJ |
美國學生社團 (Student fraternities and societies, United States) |
LT |
教科書 (Textbooks) |
|
| M 音樂 (Music and Books on Music) |
M |
音樂 (Music) |
ML |
音樂文獻 (Literature of music) |
MT |
音樂教學 (Music instruction and study) |
|
| N 美術 (Fine Arts) |
N |
視覺藝術 (Visual arts) |
NA |
建築 (Architecture) |
NB |
雕塑 (Sculpture) |
NC |
描畫、設計、插畫 (Drawing. Design. Illustration) |
ND |
繪畫 (Painting) |
NE |
印刷媒體 (Print media) |
NK |
裝飾藝術、工藝 (Decorative arts. Applied arts. Decoration and ornament) |
NX |
一般藝術 (Arts in general) |
|
| P 語言學、文學 (Philology and Literature) |
P |
一般語言學及文學 (Philology and linguistics - General) |
PA |
古典語言學及文學 (Classical languages and literatures) |
PB-PH |
現代歐洲語言 (Modern European languages) |
PJ-PL |
東方語言與文學 (Oriental languages and literatures) |
PM |
北極、印地安、人工語言 (Hyperborean, Indian, and Artificial languages) |
PN |
一般文學史及選集 (Literary history and collection - General) |
PQ |
羅曼語文學 (Romance literatures) |
PR |
英國文學 (English literature) |
PS |
美國文學 (American literature) |
PT |
德國文學 (Germanic literatures) |
PZ |
小說與青少年文 (Juvenile belles letters) |
|
| Q 科學 (Science) |
Q |
科學總論 (Science - General) |
QA |
數學 (Mathematics) |
QB |
天文學 (Astronomy) |
QC |
物理學 (Physics) |
QD |
化學 (Chemistry) |
QE |
地質學 (Geology) |
QH |
自然史總論 (Natural history - General) |
QK |
植物學 (Botany) |
QL |
動物學 (Zoology) |
QM |
人體解剖學 (Human anatomy) |
QP |
生理學 (Physiology) |
QR |
微生物學 (Microbiology) |
|
| R 醫學 (Medicine) |
R |
醫學總論 (Medicine - General) |
RA |
公共醫學 (Public aspects of medicine) |
RB |
病理學 (Pathology) |
RC |
內科 (Internal medicine. Practice of medicine) |
RD |
外科 (Surgery) |
RE |
眼科 (Ophthalmology) |
RF |
耳鼻喉科 (Otorhinolaryngology) |
RG |
婦產科 (Gynecology and obstetrics) |
RJ |
小兒科 (Pediatrics) |
RK |
牙科 (Dentistry) |
RL |
皮膚科 (Dermatology) |
RM |
治療術、藥理學 (Therapeutics. Pharmacology) |
RS |
藥學與藥物 (Pharmacy and materia medica) |
RT |
護理 (Nursing) |
RV |
草本藥學、湯森氏醫學、電子醫學 (Botanic, Thomsonian, and electric medicine) |
RX |
同種療法 (Homeopathy) |
RZ |
其他 (Other system of medicine) |
|
| S 農業 (Agriculture) |
S |
農業總論 (Agriculture - General) |
SB |
植物栽培 (Plant culture) |
SD |
森林 (Forestry) |
SF |
畜牧 (Animal culture) |
SH |
漁業 (Aquaculture. Fisheries. Angling) |
SK |
狩獵 (Hunting) |
|
| T 科技 (Technology) |
T |
科技總論 (Technology - General) |
TA |
工程總論、土木工程 (Engineering - General. Civil engineering - General) |
TC |
水利工程 (Hydraulic engineering) |
TD |
環境工程、衛生工程 (Environmental technology. Sanitary engineering) |
TE |
高速公路工程、道路與路面舖設 (Highway engineering. Roads and pavements) |
TF |
鐵路工程與營運 (Railroad engineering and operation) |
TG |
橋樑工程 (Bridge engineering) |
TH |
營造 (Building construction) |
TJ |
機械工程 (Mechanical engineering and machinery) |
TK |
電機工程、電子、核子工程 (Electrical engineering. Electronics. Nuclear engineering) |
TL |
自動車、航空學、太空學 (Motor vehicles. Aeronautics. Astronautics) |
TN |
採礦工程、礦冶 (Mining engineering. Metallurgy) |
TP |
化學科技 (Chemical technology) |
TR |
攝影學 (Photography) |
TS |
製造 (Manufactures) |
TT |
手工藝 (Handicrafts. Arts and crafts) |
TX |
家政 (Home economics) |
|
| U 軍事科學 (Military Science) |
U |
軍事科學總論 (Military science) |
UA |
陸軍：組織、分配、裝備 (Armies: organization, description, facilities, etc.) |
UB |
軍政 (Military administration) |
UC |
補給與運輸 (Maintenance and transportation) |
UD |
步兵 (Infantry) |
UE |
騎兵 (Cavalry. Armored and mechanized cavalry) |
UF |
炮兵 (Artillery) |
UG |
軍事工程、空軍、太空偵測 (Military engineering. Air forces. Air warfare. Space Surveillance) |
UH |
其它勤務 (Other services) |
|
| V 海軍學 (Naval science) |
V |
海軍學總論 (Naval science - General) |
VA |
海軍：組織、分配、裝備 (Navies: organization, description, facilities, etc.) |
VB |
海軍行政 (Naval administration) |
VC |
海軍補給 (Naval maintenance) |
VD |
海軍水手 (Naval seamen) |
VE |
鑑隊 (Marines) |
VF |
海軍軍火 (Naval ordnance) |
VG |
海軍其它勤務 (Minor services of navies) |
VK |
航海、商船 (Navigation. Merchant marine) |
VM |
海軍建築、造船、海軍工程 (Naval architecture. Shipbuilding. Marine engineering) |
|
| Z 圖書館學 (Library Science) |
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