CLASSIFICATION
T - Technology
11,151
Q - Science
4,509
H - Social Science
371
L - Education
283
G - Geography, Anthropology, Recreation
236
R - Medicine
117
K - Law
25
P - Language and Literature
25
Z - Library Science
24
B - Philosophy, Psychology, Religion
14
N - Fine Arts
14
S - Agriculture
13
D - World History
4
M - Music
4
J - Political Science
3
U - Military Science
3
V - Naval Science
3
A - General Works
1
C - Historical Sciences
1