Classification
300 - Social sciences
330 - Economics
37
380 - Commerce, communications & transportation
37
384 - Communications; telecommunication
37
658 - General management
37
302 - Social interaction
31
500 - Natural sciences & mathematics
17
670 - Manufacturing
17
331 - Labor economics
5
808 - Rhetoric & collections of literature
4
150 - Psychology
3
158 - Applied psychology
3
155 - Differential & developmental psychology
2
338 - Production
2
650 - Management & auxiliary services
2
000 - Computer science, information & general works
1
153 - Mental processes & intelligence
1
381 - Commerce
1