Ταξιθετικός Αριθμός
K - Law
390
H - Social Science
187
D - World History
128
P - Language and Literature
72
J - Political Science
62
Q - Science
54
L - Education
45
B - Philosophy, Psychology, Religion
44
G - Geography, Anthropology, Recreation
33
T - Technology
30
N - Fine Arts
28
R - Medicine
22
Z - Library Science
18
A - General Works
14
F - General American History
10
M - Music
8
C - Historical Sciences
7
S - Agriculture
7
U - Military Science
7
V - Naval Science
2
E - United States History
1