索引号
D - World History
3,242
H - Social Science
1,991
J - Political Science
1,131
U - Military Science
164
K - Law
113
E - United States History
92
P - Language and Literature
89
B - Philosophy, Psychology, Religion
86
C - Historical Sciences
57
N - Fine Arts
51
G - Geography, Anthropology, Recreation
31
Z - Library Science
29
T - Technology
26
A - General Works
25
F - General American History
23
L - Education
20
M - Music
14
S - Agriculture
9
Q - Science
8
R - Medicine
2
V - Naval Science
1