Ταξιθετικός Αριθμός
H - Social Science
885
K - Law
627
F - General American History
497
J - Political Science
290
L - Education
220
P - Language and Literature
216
B - Philosophy, Psychology, Religion
210
G - Geography, Anthropology, Recreation
111
R - Medicine
101
N - Fine Arts
92
Q - Science
84
T - Technology
65
M - Music
33
S - Agriculture
29
U - Military Science
26
A - General Works
22
Z - Library Science
21
C - Historical Sciences
7
D - World History
6
E - United States History
4