CLASSIFICATION
S - Agriculture
547
N - Fine Arts
39
T - Technology
32
H - Social Science
23
Q - Science
17
L - Education
12
P - Language and Literature
12
D - World History
7
R - Medicine
6
C - Historical Sciences
5
A - General Works
3
G - Geography, Anthropology, Recreation
3
B - Philosophy, Psychology, Religion
2
F - General American History
2
J - Political Science
1
M - Music
1