Classmark
T - Technology
1,264
P - Language and Literature
263
Z - Library Science
186
L - Education
147
A - General Works
133
G - Geography, Anthropology, Recreation
103
V - Naval Science
82
K - Law
80
F - General American History
63
S - Agriculture
57
E - United States History
38
M - Music
32
W - Wörterbücher
15
R - Medicine
14
I - Literaturtheorie, Methodologie
13
B - Philosophy, Psychology, Religion
12
D - World History
12
N - Fine Arts
12
C - Historical Sciences
1