Ταξιθετικός Αριθμός
H - Social Science
239
F - General American History
199
L - Education
162
R - Medicine
103
J - Political Science
44
K - Law
21
Q - Science
19
P - Language and Literature
11
G - Geography, Anthropology, Recreation
7
E - United States History
6
B - Philosophy, Psychology, Religion
4
N - Fine Arts
4
T - Technology
4
A - General Works
3
S - Agriculture
3
D - World History
1
Z - Library Science
1