Topogràfic
D - World History
52
P - Language and Literature
51
F - General American History
37
B - Filosofia, Psicologia, Religió
14
H - Social Science
7
Z - Library Science
4
C - Historical Sciences
3
Q - Science
2
A - Treballs generalss
1
E - United States History
1
J - Political Science
1
L - Education
1
N - Fine Arts
1
U - Military Science
1
V - Naval Science
1