Classification
170 - Ethics
330 - Economics
182
658 - General management
126
158 - Applied psychology
114
174 - Occupational ethics
75
650 - Management & auxiliary services
55
331 - Labor economics
52
338 - Production
36
302 - Social interaction
32
300 - Social sciences
30
500 - Natural sciences & mathematics
12
670 - Manufacturing
12
304 - Factors affecting social behavior
8
381 - Commerce
8
384 - Communications; telecommunication
8
800 - Literature & rhetoric
8
153 - Mental processes & intelligence
7
332 - Financial economics
7
000 - Computer science, information & general works
5
155 - Differential & developmental psychology
5
380 - Commerce, communications & transportation
5
001 - Knowledge
4
659 - Advertising & public relations
4
620 - Engineering & allied operations
3
646 - Sewing, clothing & personal living
3
796 - Athletic & outdoor sports & games
3
004 - Data processing & computer science
2
011 - Bibliographies
2
128 - Humankind
2
177 - Ethics of social relations
2
179 - Other ethical norms
2
303 - Social processes
2
339 - Macroeconomics & related topics
2
368 - Insurance
2
006 - Special computer methods
1
150 - Psychology
1
152 - Perception, movement, emotions & drives
1
171 - Ethical systems
1
201 - Religious mythology & social theology
1
261 - Social theology
1
297 - Islam, Babism & Bahai Faith
1
306 - Culture & institutions
1
333 - Economics of land & energy
1
343 - Military, tax, trade & industrial law
1
344 - Labor, social, education & cultural law
1
346 - Private law
1
355 - Military science
1
363 - Other social problems & services
1
364 - Criminology
1
374 - Adult education
1
more ...