CLASSIFICATION
N - Fine Arts
42
H - Social Science
38
L - Education
35
D - World History
26
G - Geography, Anthropology, Recreation
15
Q - Science
13
P - Language and Literature
10
T - Technology
9
A - General Works
7
B - Philosophy, Psychology, Religion
6
S - Agriculture
4
Z - Library Science
4
U - Military Science
3
J - Political Science
2
C - Historical Sciences
1
K - Law
1
R - Medicine
1