Classification
302 - Social interaction
658 - General management
300 - Social sciences
149
330 - Economics
141
500 - Natural sciences & mathematics
105
670 - Manufacturing
104
338 - Production
34
331 - Labor economics
21
381 - Commerce
20
650 - Management & auxiliary services
14
153 - Mental processes & intelligence
10
384 - Communications; telecommunication
8
332 - Financial economics
7
620 - Engineering & allied operations
7
006 - Special computer methods
6
368 - Insurance
6
158 - Applied psychology
4
380 - Commerce, communications & transportation
4
745 - Decorative arts
4
000 - Computer science, information & general works
3
155 - Differential & developmental psychology
2
170 - Ethics
2
659 - Advertising & public relations
2
001 - Knowledge
1
004 - Data processing & computer science
1
005 - Computer programming, programs & data
1
150 - Psychology
1
303 - Social processes
1
304 - Factors affecting social behavior
1
346 - Private law
1
363 - Other social problems & services
1
374 - Adult education
1
510 - Mathematics
1
651 - Office services
1
808 - Rhetoric & collections of literature
1