Ταξιθετικός Αριθμός
H - Social Science
103
P - Language and Literature
57
B - Philosophy, Psychology, Religion
48
Q - Science
45
L - Education
41
K - Law
37
F - General American History
34
T - Technology
31
D - World History
20
J - Political Science
20
S - Agriculture
20
R - Medicine
19
G - Geography, Anthropology, Recreation
17
N - Fine Arts
15
A - General Works
12
C - Historical Sciences
6
Z - Library Science
6
E - United States History
4
M - Music
1
U - Military Science
1