Klassifikationsnummer
K - Law
15,850
H - Social Science
4,081
C - Historical Sciences
1,245
E - United States History
872
J - Political Science
593
L - Education
390
U - Military Science
253
Z - Library Science
208
R - Medicine
196
P - Language and Literature
192
D - World History
138
M - Music
129
A - General Works
114
S - Agriculture
110
G - Geography, Anthropology, Recreation
92
F - General American History
86
B - Philosophy, Psychology, Religion
45
N - Fine Arts
45
T - Technology
34
Q - Science
10
V - Naval Science
7