Signatura
P - Language and Literature
18,145
D - World History
10,842
N - Fine Arts
9,263
B - Philosophy, Psychology, Religion
8,033
E - United States History
2,235
H - Social Science
2,125
F - General American History
1,463
M - Music
1,240
J - Political Science
1,142
Q - Science
680
K - Law
553
L - Education
529
G - Geography, Anthropology, Recreation
387
T - Technology
304
R - Medicine
267
A - General Works
241
C - Historical Sciences
231
U - Military Science
216
Z - Library Science
192
S - Agriculture
52
V - Naval Science
34