Classification
T - Technology
168
P - Language and Literature
106
B - Philosophy, Psychology, Religion
32
A - General Works
29
R - Medicine
24
C - Historical Sciences
20
M - Music
20
E - United States History
18
D - World History
14
Q - Science
14
H - Social Science
10
F - General American History
2
Z - Library Science
2
L - Education
1
S - Agriculture
1
U - Military Science
1