Classification
330 - Economics
320 - Political science
67
658 - General management
27
650 - Management & auxiliary services
16
158 - Applied psychology
15
900 - History & geography
13
300 - Social sciences
9
331 - Labor economics
7
700 - The arts; fine & decorative arts
7
338 - Production
6
384 - Communications; telecommunication
6
302 - Social interaction
5
381 - Commerce
5
610 - Medicine & health
4
340 - Law
3
500 - Natural sciences & mathematics
3
150 - Psychology
2
380 - Commerce, communications & transportation
2
600 - Technology
2
620 - Engineering & allied operations
2
630 - Agriculture & related technologies
2
800 - Literature & rhetoric
2
001 - Knowledge
1
005 - Computer programming, programs & data
1
153 - Mental processes & intelligence
1
170 - Ethics
1
306 - Culture & institutions
1
332 - Financial economics
1
339 - Macroeconomics & related topics
1
550 - Earth sciences
1