索引号
H - Social Science
23,580
D - World History
11,990
P - Language and Literature
4,761
Q - Science
4,694
J - Political Science
3,975
K - Law
3,847
B - Philosophy, Psychology, Religion
3,248
L - Education
3,172
T - Technology
2,901
G - Geography, Anthropology, Recreation
2,261
F - General American History
2,126
S - Agriculture
2,109
R - Medicine
1,929
N - Fine Arts
1,654
Z - Library Science
1,494
E - United States History
1,223
A - General Works
968
M - Music
916
C - Historical Sciences
864
U - Military Science
639
V - Naval Science
72