CLASSIFICATION
H - Social Science
22
T - Technology
17
G - Geography, Anthropology, Recreation
5
L - Education
3
Q - Science
3
Z - Library Science
3
D - World History
2
K - Law
2
N - Fine Arts
2
R - Medicine
2
A - General Works
1
B - Philosophy, Psychology, Religion
1
J - Political Science
1
P - Language and Literature
1
S - Agriculture
1