Classification
D - World History
428
P - Language and Literature
370
H - Social Science
98
Q - Science
89
T - Technology
87
L - Education
56
C - Historical Sciences
31
E - United States History
26
G - Geography, Anthropology, Recreation
20
Z - Library Science
17
F - General American History
13
J - Political Science
12
S - Agriculture
8
K - Law
4
M - Music
4
R - Medicine
2
N - Fine Arts
1