CLASSIFICATION
H - Social Science
200
L - Education
119
S - Agriculture
45
C - Historical Sciences
13
T - Technology
12
D - World History
9
P - Language and Literature
8
J - Political Science
7
A - General Works
6
R - Medicine
5
F - General American History
3
G - Geography, Anthropology, Recreation
3
K - Law
3
V - Naval Science
3
Q - Science
1