Classification
Q - Science
20
K - Law
19
R - Medicine
18
T - Technology
8
H - Social Science
7
A - General Works
6
Z - Library Science
6
D - World History
4
B - Philosophy, Psychology, Religion
3
E - United States History
3
G - Geography, Anthropology, Recreation
3
N - Fine Arts
3
P - Language and Literature
3
C - Historical Sciences
1
F - General American History
1
L - Education
1
M - Music
1
S - Agriculture
1
U - Military Science
1