Шифр
U - Military Science
219
B - Philosophy, Psychology, Religion
158
P - Language and Literature
140
H - Social Science
137
T - Technology
128
M - Music
126
C - Historical Sciences
122
D - World History
114
S - Agriculture
107
G - Geography, Anthropology, Recreation
92
F - General American History
80
R - Medicine
71
L - Education
66
A - General Works
61
E - United States History
60
J - Political Science
56
K - Law
47
N - Fine Arts
46
Z - Library Science
21
V - Naval Science
15
Q - Science
13