Ταξιθετικός Αριθμός
P - Language and Literature
227
H - Social Science
124
D - World History
106
B - Philosophy, Psychology, Religion
85
L - Education
57
F - General American History
56
J - Political Science
35
K - Law
34
Q - Science
19
G - Geography, Anthropology, Recreation
18
N - Fine Arts
12
R - Medicine
5
C - Historical Sciences
4
E - United States History
4
M - Music
4
T - Technology
4
Z - Library Science
2
A - General Works
1
U - Military Science
1
V - Naval Science
1