Classification
330 - Economics
50
338 - Production
650 - Management & auxiliary services
658 - General management
50
158 - Applied psychology
43
300 - Social sciences
10
500 - Natural sciences & mathematics
9
670 - Manufacturing
9
302 - Social interaction
7
331 - Labor economics
7
153 - Mental processes & intelligence
5
381 - Commerce
4
332 - Financial economics
3
800 - Literature & rhetoric
2
000 - Computer science, information & general works
1
001 - Knowledge
1
004 - Data processing & computer science
1
620 - Engineering & allied operations
1