Classification
330 - Economics
650 - Management & auxiliary services
658 - General management
29
320 - Political science
15
158 - Applied psychology
12
300 - Social sciences
9
153 - Mental processes & intelligence
8
500 - Natural sciences & mathematics
6
340 - Law
5
361 - Social problems & social welfare in general
5
610 - Medicine & health
4
000 - Computer science, information & general works
3
302 - Social interaction
3
331 - Labor economics
3
338 - Production
3
381 - Commerce
3
005 - Computer programming, programs & data
2
670 - Manufacturing
2
745 - Decorative arts
2
006 - Special computer methods
1
150 - Psychology
1
200 - Religion
1
384 - Communications; telecommunication
1
796 - Athletic & outdoor sports & games
1
800 - Literature & rhetoric
1