索引號
H - Social Science
4,250
R - Medicine
2,406
Q - Science
1,754
T - Technology
1,484
P - Language and Literature
568
L - Education
537
K - Law
516
B - Philosophy, Psychology, Religion
390
G - Geography, Anthropology, Recreation
359
D - World History
312
S - Agriculture
302
J - Political Science
223
Z - Library Science
214
A - General Works
167
N - Fine Arts
123
F - General American History
114
E - United States History
99
U - Military Science
88
M - Music
82
C - Historical Sciences
44
V - Naval Science
27