索引号
P - Language and Literature
14,459
B - Philosophy, Psychology, Religion
9,306
D - World History
1,657
Q - Science
679
M - Music
601
R - Medicine
376
C - Historical Sciences
360
J - Political Science
255
Z - Library Science
194
K - Law
170
A - General Works
160
N - Fine Arts
154
G - Geography, Anthropology, Recreation
132
H - Social Science
95
S - Agriculture
47
U - Military Science
44
L - Education
37
T - Technology
25
E - United States History
14
F - General American History
11
V - Naval Science
4