Шифр
D - World History
5,722
H - Social Science
2,612
B - Philosophy, Psychology, Religion
1,469
P - Language and Literature
1,397
G - Geography, Anthropology, Recreation
1,030
N - Fine Arts
832
K - Law
589
R - Medicine
301
L - Education
295
M - Music
293
J - Political Science
288
Q - Science
284
T - Technology
274
S - Agriculture
210
Z - Library Science
185
C - Historical Sciences
151
A - General Works
83
U - Military Science
62
V - Naval Science
27
E - United States History
26
F - General American History
14