Classification
P - Language and Literature
3,239
A - General Works
122
Q - Science
116
B - Philosophy, Psychology, Religion
90
H - Social Science
66
D - World History
28
L - Education
21
S - Agriculture
19
K - Law
11
M - Music
6
R - Medicine
6
T - Technology
6
J - Political Science
4
N - Fine Arts
4
G - Geography, Anthropology, Recreation
3
C - Historical Sciences
2
Z - Library Science
1