Classification
338 - Production
620 - Engineering & allied operations
658 - General management
112
330 - Economics
44
500 - Natural sciences & mathematics
30
621 - Applied physics
24
300 - Social sciences
17
384 - Communications; telecommunication
17
331 - Labor economics
15
302 - Social interaction
8
381 - Commerce
8
332 - Financial economics
7
600 - Technology
7
670 - Manufacturing
7
745 - Decorative arts
6
000 - Computer science, information & general works
5
629 - Other branches of engineering
5
153 - Mental processes & intelligence
4
628 - Sanitary & municipal engineering
4
001 - Knowledge
3
005 - Computer programming, programs & data
3
158 - Applied psychology
3
303 - Social processes
3
304 - Factors affecting social behavior
3
609 - Historical, geographic & persons treatment
3
650 - Management & auxiliary services
3
608 - Inventions & patents
2
610 - Medicine & health
2
664 - Food technology
2
004 - Data processing & computer science
1
006 - Special computer methods
1
170 - Ethics
1
355 - Military science
1
363 - Other social problems & services
1
510 - Mathematics
1
617 - Surgery & related medical specialties
1
623 - Military & nautical engineering
1
632 - Plant injuries, diseases & pests
1
677 - Textiles
1
681 - Precision instruments & other devices
1
687 - Clothing & accessories
1