Classification
P - Language and Literature
304
D - World History
110
N - Fine Arts
32
B - Philosophy, Psychology, Religion
23
J - Political Science
19
H - Social Science
14
K - Law
12
T - Technology
4
G - Geography, Anthropology, Recreation
3
C - Historical Sciences
2
R - Medicine
2
S - Agriculture
2
U - Military Science
2
A - General Works
1
L - Education
1
M - Music
1
Q - Science
1
V - Naval Science
1