Número de Clasificación
R - Medicine
37
H - Social Science
36
T - Technology
31
Q - Science
29
P - Language and Literature
15
B - Philosophy, Psychology, Religion
10
G - Geography, Anthropology, Recreation
10
S - Agriculture
10
L - Education
9
N - Fine Arts
4
Z - Library Science
4
J - Political Science
2
K - Law
2
U - Military Science
2
C - Historical Sciences
1
D - World History
1