Classification
300 - Social sciences
57
302 - Social interaction
57
380 - Commerce, communications & transportation
384 - Communications; telecommunication
500 - Natural sciences & mathematics
658 - General management
57
330 - Economics
56
670 - Manufacturing
56
331 - Labor economics
8
381 - Commerce
6
338 - Production
4
006 - Special computer methods
3
153 - Mental processes & intelligence
2
158 - Applied psychology
2
650 - Management & auxiliary services
2
808 - Rhetoric & collections of literature
2
028 - Reading & use of other information media
1
150 - Psychology
1
155 - Differential & developmental psychology
1
620 - Engineering & allied operations
1