Ταξιθετικός Αριθμός
P - Language and Literature
94
F - General American History
72
B - Philosophy, Psychology, Religion
57
D - World History
39
H - Social Science
31
M - Music
27
N - Fine Arts
22
Q - Science
18
C - Historical Sciences
17
G - Geography, Anthropology, Recreation
16
R - Medicine
13
L - Education
11
E - United States History
8
J - Political Science
7
T - Technology
7
K - Law
4
Z - Library Science
4
U - Military Science
3
A - General Works
1
S - Agriculture
1