CLASSIFICATION
Q - Science
39
D - World History
28
L - Education
26
A - General Works
23
P - Language and Literature
22
G - Geography, Anthropology, Recreation
19
J - Political Science
12
B - Philosophy, Psychology, Religion
8
C - Historical Sciences
7
H - Social Science
7
T - Technology
5
E - United States History
3
K - Law
3
R - Medicine
3
F - General American History
2
S - Agriculture
2