Шифр
H - Social Science
74
L - Education
70
Q - Science
22
R - Medicine
22
P - Language and Literature
11
T - Technology
11
B - Philosophy, Psychology, Religion
8
G - Geography, Anthropology, Recreation
8
Z - Library Science
7
J - Political Science
6
K - Law
6
N - Fine Arts
4
A - General Works
3
D - World History
2
S - Agriculture
1