CLASSIFICATION
T - Technology
342
L - Education
189
Q - Science
182
R - Medicine
93
S - Agriculture
34
C - Historical Sciences
23
G - Geography, Anthropology, Recreation
11
A - General Works
5
M - Music
4
E - United States History
3
D - World History
2
F - General American History
2
K - Law
2
N - Fine Arts
2
H - Social Science
1
Z - Library Science
1