Ταξιθετικός Αριθμός
D - World History
139
F - General American History
98
J - Political Science
85
P - Language and Literature
66
H - Social Science
63
U - Military Science
54
K - Law
41
L - Education
14
B - Philosophy, Psychology, Religion
13
S - Agriculture
13
G - Geography, Anthropology, Recreation
11
N - Fine Arts
10
R - Medicine
10
M - Music
7
Q - Science
7
T - Technology
5
C - Historical Sciences
4
Z - Library Science
3
A - General Works
1
E - United States History
1