Шифр
P - Language and Literature
17,493
D - World History
11,969
B - Philosophy, Psychology, Religion
7,282
H - Social Science
4,069
N - Fine Arts
2,204
G - Geography, Anthropology, Recreation
1,693
C - Historical Sciences
1,492
K - Law
1,453
J - Political Science
928
Z - Library Science
915
M - Music
597
T - Technology
559
Q - Science
460
R - Medicine
454
U - Military Science
440
A - General Works
289
L - Education
255
S - Agriculture
249
F - General American History
208
V - Naval Science
136
E - United States History
109