Ταξιθετικός Αριθμός
F - General American History
24
H - Social Science
13
K - Law
11
J - Political Science
7
L - Education
7
P - Language and Literature
7
D - World History
4
G - Geography, Anthropology, Recreation
4
B - Philosophy, Psychology, Religion
3
N - Fine Arts
3
A - General Works
1
Q - Science
1
Z - Library Science
1