Classification
500 - Natural sciences & mathematics
330 - Economics
16
658 - General management
14
670 - Manufacturing
11
300 - Social sciences
9
302 - Social interaction
9
620 - Engineering & allied operations
9
304 - Factors affecting social behavior
8
331 - Labor economics
7
363 - Other social problems & services
6
338 - Production
5
004 - Data processing & computer science
3
158 - Applied psychology
2
650 - Management & auxiliary services
2
170 - Ethics
1
303 - Social processes
1
307 - Communities
1
333 - Economics of land & energy
1
380 - Commerce, communications & transportation
1
381 - Commerce
1
538 - Magnetism
1
577 - Ecology
1
621 - Applied physics
1
628 - Sanitary & municipal engineering
1
630 - Agriculture & related technologies
1
660 - Chemical engineering
1
720 - Architecture
1
724 - Architecture from 1400
1
745 - Decorative arts
1