Classification
P - Language and Literature
269
K - Law
48
D - World History
23
Q - Science
23
H - Social Science
20
N - Fine Arts
9
J - Political Science
3
L - Education
3
F - General American History
2
G - Geography, Anthropology, Recreation
2
M - Music
2
T - Technology
2
U - Military Science
2
A - General Works
1
B - Philosophy, Psychology, Religion
1
C - Historical Sciences
1
R - Medicine
1
S - Agriculture
1
Z - Library Science
1