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Library of Congress Subject Areas
(4116)
A General Works
(5)
AC Collections. Series. Collected works
(1)
AI Indexes (General)
(1)
AZ History of Scholarship The Humanities
(3)
B Philosophy. Psychology. Religion
(109)
B Philosophy (General)
(2)
BD Speculative Philosophy
(3)
BF Psychology
(1)
BL Religion
(22)
BP Islam. Bahaism. Theosophy, etc
(86)
Islam
(28)
General
(3)
BT Doctrinal Theology
(2)
C Auxiliary Sciences of History
(2)
C Auxiliary sciences of history (General)
(1)
CB History of civilization
(1)
D History General and Old World
(18)
D History (General)
(3)
D111 Medieval History
(2)
D880 Developing Countries
(1)
DP Spain
(2)
DS Asia
(13)
DT Africa
(2)
G Geography. Anthropology. Recreation
(12)
G Geography (General)
(4)
GB Physical geography
(2)
GE Environmental Sciences
(1)
GN Anthropology
(5)
GT Manners and customs
(1)
GV Recreation Leisure
(2)
H Social Sciences
(112)
H Social Sciences (General)
(79)
HB Economic Theory
(5)
Competition. Production. Wealth
(1)
HC Economic History and Conditions
(5)
HD Industries. Land use. Labor
(15)
HD28 Management. Industrial Management
(5)
HF Commerce
(2)
Business
(1)
Business communication
(1)
HG Finance
(2)
HJ Public Finance
(1)
HM Sociology
(1)
HN Social history and conditions. Social problems. Social reform
(7)
HQ The family. Marriage. Woman
(4)
HT Communities. Classes. Races
(10)
HV Social pathology. Social and public welfare
(1)
J Political Science
(12)
J General legislative and executive papers
(2)
JA Political science (General)
(6)
JC Political theory
(1)
JF Political institutions (General)
(2)
JQ Political institutions Asia
(1)
JV Colonies and colonization. Emigration and immigration. International migration
(1)
JX International law
(1)
JZ International relations
(1)
K Law
(6)
K Law (General)
(6)
L Education
(57)
L Education (General)
(54)
LA History of education
(1)
LB Theory and practice of education
(5)
LB2361 Curriculum
(1)
N Fine Arts
(1)
NX Arts in general
(1)
P Language and Literature
(32)
P Philology. Linguistics
(26)
Communication. Mass media
(10)
PE English
(2)
PJ Semitic
(1)
PL Languages and literatures of Eastern Asia, Africa, Oceania
(2)
PN Literature (General)
(2)
PN2000 Dramatic representation. The Theater
(1)
Q Science
(956)
Q Science (General)
(163)
QA Mathematics
(135)
QA75 Electronic computers. Computer science
(121)
QA76 Computer software
(12)
QC Physics
(81)
QD Chemistry
(434)
QE Geology
(1)
QH Natural history
(183)
QH301 Biology
(182)
QK Botany
(2)
QL Zoology
(1)
QM Human anatomy
(1)
QR Microbiology
(96)
R Medicine
(2136)
R Medicine (General)
(303)
Medical technology
(7)
RA Public aspects of medicine
(11)
RA0421 Public health. Hygiene. Preventive Medicine
(7)
RA1001 Forensic Medicine. Medical jurisprudence. Legal medicine
(1)
RB Pathology
(54)
Theories of disease. Etiology. Pathogenesis
(10)
RC Internal medicine
(24)
RC0254 Neoplasms. Tumors. Oncology (including Cancer)
(17)
RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
(1)
RC306-320.5 Tuberculosis
(1)
RD Surgery
(42)
RE Ophthalmology
(5)
RF Otorhinolaryngology
(1)
RG Gynecology and obstetrics
(4)
RJ Pediatrics
(16)
Genetic aspect
(1)
RK Dentistry
(450)
Oral surger
(74)
Practice of dentistry. Dental economics
(2)
RM Therapeutics. Pharmacology
(36)
RS Pharmacy and materia medica
(16)
RT Nursing
(4)
RV Botanic, Thomsonian, and eclectic medicine
(3)
RX Homeopathy
(1)
Diseases, treatment, etc
(1)
RZ Other systems of medicine
(3)
S Agriculture
(10)
S Agriculture (General)
(6)
SB Plant culture
(2)
SF Animal culture
(1)
SH Aquaculture. Fisheries. Angling
(1)
T Technology
(722)
T Technology (General)
(246)
TA Engineering (General). Civil engineering (General)
(389)
TD Environmental technology. Sanitary engineering
(1)
TJ Mechanical engineering and machinery
(10)
TK Electrical engineering. Electronics Nuclear engineering
(201)
TP Chemical technology
(4)
TR Photography
(1)
TS Manufactures
(4)
Z Bibliography. Library Science. Information Resources
(137)
Information resources (General)
(9)
Information services. Information centers
(2)
Libraries
(35)
Collections
(13)
Library science. Information science
(13)
Libraries (General)
(3)