Ταξιθετικός Αριθμός
H - Social Science
240
F - General American History
198
L - Education
162
R - Medicine
101
J - Political Science
45
K - Law
20
Q - Science
19
P - Language and Literature
8
G - Geography, Anthropology, Recreation
5
A - General Works
4
N - Fine Arts
4
T - Technology
4
B - Philosophy, Psychology, Religion
3
E - United States History
3
S - Agriculture
2
D - World History
1
Z - Library Science
1