Шифр
D - World History
6,446
P - Language and Literature
1,116
H - Social Science
265
B - Philosophy, Psychology, Religion
80
K - Law
72
N - Fine Arts
60
G - Geography, Anthropology, Recreation
41
Z - Library Science
41
M - Music
40
U - Military Science
39
J - Political Science
37
L - Education
35
C - Historical Sciences
27
T - Technology
21
A - General Works
18
F - General American History
18
R - Medicine
18
V - Naval Science
5
Q - Science
4
S - Agriculture
2
E - United States History
1