Classification
P - Language and Literature
1,103
H - Social Science
725
Q - Science
312
D - World History
241
S - Agriculture
147
L - Education
121
B - Philosophy, Psychology, Religion
113
J - Political Science
107
G - Geography, Anthropology, Recreation
91
N - Fine Arts
81
T - Technology
71
R - Medicine
67
K - Law
45
M - Music
30
A - General Works
20
C - Historical Sciences
18
U - Military Science
18
Z - Library Science
16
V - Naval Science
6
E - United States History
3