Classification
H - Social Science
304
P - Language and Literature
280
S - Agriculture
50
L - Education
16
D - World History
8
J - Political Science
8
K - Law
6
Q - Science
6
R - Medicine
6
T - Technology
6
G - Geography, Anthropology, Recreation
4
M - Music
4
A - General Works
3
U - Military Science
2
B - Philosophy, Psychology, Religion
1
Z - Library Science
1