Шифр
H - Social Science
139,358
R - Medicine
11,989
L - Education
11,156
J - Political Science
6,268
S - Agriculture
5,670
C - Historical Sciences
5,006
T - Technology
4,270
G - Geography, Anthropology, Recreation
4,244
Q - Science
3,192
D - World History
3,087
E - United States History
2,792
F - General American History
2,086
K - Law
2,031
Z - Library Science
1,922
N - Fine Arts
1,674
A - General Works
1,512
B - Philosophy, Psychology, Religion
1,505
P - Language and Literature
1,462
M - Music
1,294
U - Military Science
1,085
V - Naval Science
185