CLASSIFICATION
H - Social Science
77
D - World History
33
L - Education
23
G - Geography, Anthropology, Recreation
17
T - Technology
13
B - Philosophy, Psychology, Religion
10
N - Fine Arts
9
K - Law
7
J - Political Science
6
P - Language and Literature
5
Q - Science
5
S - Agriculture
4
A - General Works
3
R - Medicine
3
Z - Library Science
2
C - Historical Sciences
1
U - Military Science
1