סימן המיקום
H - Social Science
395
T - Technology
90
Q - Science
12
R - Medicine
12
G - Geography, Anthropology, Recreation
10
L - Education
5
C - Historical Sciences
3
Z - Library Science
3
B - Philosophy, Psychology, Religion
2
N - Fine Arts
2
A - General Works
1
J - Political Science
1
S - Agriculture
1
U - Military Science
1