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F - General American History
1,281
D - World History
1,100
H - Social Science
780
P - Language and Literature
473
B - Filosofia, Psicologia, Religió
404
J - Political Science
311
L - Education
285
K - Law
248
N - Fine Arts
218
A - Treballs generalss
197
Q - Science
156
G - Geography, Anthropology, Recreation
129
R - Medicine
124
T - Technology
106
E - United States History
92
Z - Library Science
79
C - Historical Sciences
74
U - Military Science
31
M - Music
28
S - Agriculture
23
V - Naval Science
11