索引号
P - Language and Literature
15,343
B - Philosophy, Psychology, Religion
14,569
D - World History
11,510
N - Fine Arts
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M - Music
6,093
Z - Library Science
4,021
H - Social Science
3,127
F - General American History
1,860
G - Geography, Anthropology, Recreation
1,210
R - Medicine
862
K - Law
857
Q - Science
763
C - Historical Sciences
720
J - Political Science
699
L - Education
544
E - United States History
469
A - General Works
339
T - Technology
298
S - Agriculture
291
U - Military Science
280
V - Naval Science
128