Classification
629 - Other branches of engineering
63
621 - Applied physics
11
658 - General management
6
004 - Data processing & computer science
5
158 - Applied psychology
3
307 - Communities
3
670 - Manufacturing
3
333 - Economics of land & energy
2
338 - Production
2
388 - Transportation; ground transportation
2
620 - Engineering & allied operations
2
624 - Civil engineering
2
003 - Systems
1
005 - Computer programming, programs & data
1
006 - Special computer methods
1
303 - Social processes
1
321 - Systems of governments & states
1
346 - Private law
1
537 - Electricity & electronics
1
571 - Physiology & related subjects
1
660 - Chemical engineering
1
690 - Buildings
1
720 - Architecture
1