CLASSIFICATION
H - Social Science
167,090
P - Language and Literature
82,523
Q - Science
74,197
D - World History
45,080
T - Technology
42,890
L - Education
36,115
R - Medicine
33,077
B - Philosophy, Psychology, Religion
31,672
J - Political Science
22,799
G - Geography, Anthropology, Recreation
21,493
N - Fine Arts
21,320
K - Law
20,712
M - Music
11,435
Z - Library Science
9,830
S - Agriculture
8,666
F - General American History
8,078
E - United States History
6,858
C - Historical Sciences
5,638
U - Military Science
1,926
A - General Works
1,819
V - Naval Science
381