Classification
000 - Computer science, information & general works
300 - Social sciences
658 - General management
302 - Social interaction
85
331 - Labor economics
51
330 - Economics
24
338 - Production
21
158 - Applied psychology
8
650 - Management & auxiliary services
8
153 - Mental processes & intelligence
5
384 - Communications; telecommunication
5
380 - Commerce, communications & transportation
4
620 - Engineering & allied operations
4
001 - Knowledge
3
381 - Commerce
3
745 - Decorative arts
3
150 - Psychology
2
500 - Natural sciences & mathematics
2
510 - Mathematics
2
670 - Manufacturing
2
170 - Ethics
1
519 - Probabilities & applied mathematics
1
800 - Literature & rhetoric
1