Classification
P - Language and Literature
625
H - Social Science
535
D - World History
204
Q - Science
115
B - Philosophy, Psychology, Religion
101
L - Education
100
J - Political Science
94
N - Fine Arts
75
G - Geography, Anthropology, Recreation
59
K - Law
36
R - Medicine
34
S - Agriculture
34
T - Technology
31
M - Music
27
A - General Works
20
C - Historical Sciences
17
Z - Library Science
16
U - Military Science
15
V - Naval Science
5
E - United States History
2