Ταξιθετικός Αριθμός
H - Social Science
705
S - Agriculture
438
Q - Science
274
L - Education
202
B - Philosophy, Psychology, Religion
178
A - General Works
148
R - Medicine
143
P - Language and Literature
71
T - Technology
69
K - Law
54
F - General American History
28
Z - Library Science
28
J - Political Science
24
G - Geography, Anthropology, Recreation
16
N - Fine Arts
5
U - Military Science
3
D - World History
2
M - Music
1