Classification
338 - Production
500 - Natural sciences & mathematics
658 - General management
263
670 - Manufacturing
330 - Economics
261
300 - Social sciences
260
302 - Social interaction
258
331 - Labor economics
45
332 - Financial economics
31
381 - Commerce
30
650 - Management & auxiliary services
23
158 - Applied psychology
21
153 - Mental processes & intelligence
14
384 - Communications; telecommunication
10
380 - Commerce, communications & transportation
5
745 - Decorative arts
5
368 - Insurance
4
620 - Engineering & allied operations
4
001 - Knowledge
3
006 - Special computer methods
3
004 - Data processing & computer science
2
303 - Social processes
2
005 - Computer programming, programs & data
1
152 - Perception, movement, emotions & drives
1
170 - Ethics
1
304 - Factors affecting social behavior
1
361 - Social problems & social welfare in general
1
364 - Criminology
1
600 - Technology
1
629 - Other branches of engineering
1
659 - Advertising & public relations
1
808 - Rhetoric & collections of literature
1