CLASSIFICATION
H - Social Science
714
T - Technology
69
S - Agriculture
63
L - Education
22
K - Law
11
Q - Science
8
C - Historical Sciences
7
D - World History
7
R - Medicine
7
G - Geography, Anthropology, Recreation
6
A - General Works
4
M - Music
2
B - Philosophy, Psychology, Religion
1
P - Language and Literature
1
V - Naval Science
1