Classification
170 - Ethics
330 - Economics
658 - General management
158 - Applied psychology
44
650 - Management & auxiliary services
38
174 - Occupational ethics
35
331 - Labor economics
35
300 - Social sciences
24
302 - Social interaction
23
338 - Production
19
670 - Manufacturing
12
500 - Natural sciences & mathematics
6
610 - Medicine & health
6
304 - Factors affecting social behavior
5
380 - Commerce, communications & transportation
4
381 - Commerce
4
384 - Communications; telecommunication
4
800 - Literature & rhetoric
4
000 - Computer science, information & general works
3
004 - Data processing & computer science
2
140 - Specific philosophical schools
2
200 - Religion
2
320 - Political science
2
332 - Financial economics
2
333 - Economics of land & energy
2
363 - Other social problems & services
2
368 - Insurance
2
659 - Advertising & public relations
2
001 - Knowledge
1
100 - Philosophy & psychology
1
152 - Perception, movement, emotions & drives
1
153 - Mental processes & intelligence
1
201 - Religious mythology & social theology
1
261 - Social theology
1
303 - Social processes
1
340 - Law
1
346 - Private law
1
350 - Public administration & military science
1
551 - Geology, hydrology & meteorology
1
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
1