Classification
330 - Economics
317
658 - General management
109
338 - Production
23
650 - Management & auxiliary services
22
332 - Financial economics
19
300 - Social sciences
13
302 - Social interaction
13
331 - Labor economics
13
670 - Manufacturing
12
158 - Applied psychology
10
005 - Computer programming, programs & data
9
006 - Special computer methods
9
380 - Commerce, communications & transportation
9
500 - Natural sciences & mathematics
8
320 - Political science
7
004 - Data processing & computer science
6
305 - Social groups
5
340 - Law
5
370 - Education
5
381 - Commerce
5
000 - Computer science, information & general works
4
306 - Culture & institutions
4
333 - Economics of land & energy
4
384 - Communications; telecommunication
4
400 - Language
4
410 - Linguistics
4
414 - Phonology & phonetics
4
620 - Engineering & allied operations
4
339 - Macroeconomics & related topics
3
621 - Applied physics
3
001 - Knowledge
2
155 - Differential & developmental psychology
2
303 - Social processes
2
304 - Factors affecting social behavior
2
337 - International economics
2
610 - Medicine & health
2
629 - Other branches of engineering
2
659 - Advertising & public relations
2
664 - Food technology
2
796 - Athletic & outdoor sports & games
2
070 - News media, journalism & publishing
1
153 - Mental processes & intelligence
1
174 - Occupational ethics
1
327 - International relations
1
363 - Other social problems & services
1
364 - Criminology
1
368 - Insurance
1
516 - Geometry
1
526 - Mathematical geography
1
540 - Chemistry & allied sciences
1
more ...