Klassifikationsnummer
R - Medicine
149
H - Social Science
145
Q - Science
95
T - Technology
77
L - Education
51
S - Agriculture
25
P - Language and Literature
19
B - Philosophy, Psychology, Religion
13
G - Geography, Anthropology, Recreation
13
Z - Library Science
7
J - Political Science
5
K - Law
5
D - World History
3
A - General Works
1
C - Historical Sciences
1
M - Music
1
N - Fine Arts
1
U - Military Science
1