索引号
H - Social Science
8,489
R - Medicine
4,423
L - Education
4,383
Q - Science
4,168
P - Language and Literature
3,401
S - Agriculture
3,056
B - Philosophy, Psychology, Religion
2,957
T - Technology
2,756
K - Law
2,055
J - Political Science
1,612
G - Geography, Anthropology, Recreation
1,130
F - General American History
714
N - Fine Arts
700
D - World History
518
Z - Library Science
505
A - General Works
406
C - Historical Sciences
295
E - United States History
87
M - Music
85
U - Military Science
56
V - Naval Science
7