Classification
330 - Economics
658 - General management
190
670 - Manufacturing
300 - Social sciences
151
500 - Natural sciences & mathematics
151
302 - Social interaction
150
338 - Production
47
381 - Commerce
32
331 - Labor economics
28
158 - Applied psychology
13
650 - Management & auxiliary services
13
384 - Communications; telecommunication
8
001 - Knowledge
7
153 - Mental processes & intelligence
7
304 - Factors affecting social behavior
7
332 - Financial economics
7
368 - Insurance
6
620 - Engineering & allied operations
6
000 - Computer science, information & general works
5
303 - Social processes
3
380 - Commerce, communications & transportation
3
745 - Decorative arts
3
006 - Special computer methods
2
170 - Ethics
2
337 - International economics
1
590 - Animals (Zoology)
1
600 - Technology
1
629 - Other branches of engineering
1
659 - Advertising & public relations
1