Classification
P - Language and Literature
134
D - World History
102
H - Social Science
94
C - Historical Sciences
87
F - General American History
76
Q - Science
65
T - Technology
42
R - Medicine
38
S - Agriculture
36
K - Law
34
A - General Works
27
E - United States History
24
J - Political Science
24
M - Music
24
G - Geography, Anthropology, Recreation
22
B - Philosophy, Psychology, Religion
17
U - Military Science
12
L - Education
8
Z - Library Science
3