Classification
H - Social Science
268
S - Agriculture
228
T - Technology
129
Q - Science
86
K - Law
69
R - Medicine
67
L - Education
62
J - Political Science
22
Z - Library Science
19
G - Geography, Anthropology, Recreation
12
D - World History
10
A - General Works
8
M - Music
7
N - Fine Arts
3
B - Philosophy, Psychology, Religion
2
C - Historical Sciences
2
P - Language and Literature
1
V - Naval Science
1