Classification
170 - Ethics
330 - Economics
9
331 - Labor economics
658 - General management
7
174 - Occupational ethics
2
300 - Social sciences
2
302 - Social interaction
2
338 - Production
2
001 - Knowledge
1
304 - Factors affecting social behavior
1
333 - Economics of land & energy
1
381 - Commerce
1
384 - Communications; telecommunication
1
670 - Manufacturing
1