Classification
302 - Social interaction
650 - Management & auxiliary services
330 - Economics
347
658 - General management
338
300 - Social sciences
256
158 - Applied psychology
187
500 - Natural sciences & mathematics
105
670 - Manufacturing
103
331 - Labor economics
100
153 - Mental processes & intelligence
86
338 - Production
76
384 - Communications; telecommunication
60
381 - Commerce
41
006 - Special computer methods
34
380 - Commerce, communications & transportation
31
150 - Psychology
21
001 - Knowledge
11
000 - Computer science, information & general works
9
620 - Engineering & allied operations
8
155 - Differential & developmental psychology
6
152 - Perception, movement, emotions & drives
4
303 - Social processes
4
659 - Advertising & public relations
3
745 - Decorative arts
3
005 - Computer programming, programs & data
2
170 - Ethics
2
304 - Factors affecting social behavior
2
332 - Financial economics
2
610 - Medicine & health
2
174 - Occupational ethics
1
306 - Culture & institutions
1
333 - Economics of land & energy
1
519 - Probabilities & applied mathematics
1
629 - Other branches of engineering
1
651 - Office services
1