Classification
P - Language and Literature
1,707
Q - Science
158
R - Medicine
96
H - Social Science
68
B - Philosophy, Psychology, Religion
67
D - World History
39
S - Agriculture
28
K - Law
25
G - Geography, Anthropology, Recreation
15
J - Political Science
12
N - Fine Arts
12
T - Technology
11
L - Education
5
M - Music
5
U - Military Science
5
Z - Library Science
4
A - General Works
2
V - Naval Science
2
C - Historical Sciences
1