Classification
153 - Mental processes & intelligence
500 - Natural sciences & mathematics
300 - Social sciences
2
330 - Economics
2
658 - General management
2
001 - Knowledge
1
003 - Systems
1
006 - Special computer methods
1
302 - Social interaction
1
305 - Social groups
1
331 - Labor economics
1
339 - Macroeconomics & related topics
1
368 - Insurance
1
620 - Engineering & allied operations
1
670 - Manufacturing
1
745 - Decorative arts
1