Classmark
T - Technology
14,433
P - Language and Literature
7,477
G - Geography, Anthropology, Recreation
3,848
K - Law
3,602
A - General Works
3,393
Z - Library Science
3,192
L - Education
2,117
M - Music
1,743
S - Agriculture
1,593
F - General American History
1,570
R - Medicine
1,266
V - Naval Science
1,233
E - United States History
595
B - Philosophy, Psychology, Religion
469
I - Literaturtheorie, Methodologie
418
D - World History
413
W - Wörterbücher
388
N - Fine Arts
380
C - Historical Sciences
145