Classification
650 - Management & auxiliary services
330 - Economics
32
658 - General management
30
158 - Applied psychology
17
331 - Labor economics
9
300 - Social sciences
8
302 - Social interaction
7
153 - Mental processes & intelligence
5
338 - Production
5
384 - Communications; telecommunication
4
005 - Computer programming, programs & data
3
332 - Financial economics
3
333 - Economics of land & energy
3
380 - Commerce, communications & transportation
3
381 - Commerce
3
500 - Natural sciences & mathematics
3
600 - Technology
3
670 - Manufacturing
3
700 - The arts; fine & decorative arts
3
339 - Macroeconomics & related topics
2
363 - Other social problems & services
2
657 - Accounting
2
150 - Psychology
1
152 - Perception, movement, emotions & drives
1
320 - Political science
1
350 - Public administration & military science
1
362 - Social welfare problems & services
1
580 - Plants (Botany)
1
620 - Engineering & allied operations
1
659 - Advertising & public relations
1