Classification
380 - Commerce, communications & transportation
384 - Communications; telecommunication
658 - General management
75
300 - Social sciences
72
302 - Social interaction
72
330 - Economics
68
500 - Natural sciences & mathematics
57
670 - Manufacturing
56
331 - Labor economics
12
381 - Commerce
7
338 - Production
6
153 - Mental processes & intelligence
5
006 - Special computer methods
4
650 - Management & auxiliary services
4
808 - Rhetoric & collections of literature
4
150 - Psychology
3
158 - Applied psychology
2
000 - Computer science, information & general works
1
028 - Reading & use of other information media
1
152 - Perception, movement, emotions & drives
1
155 - Differential & developmental psychology
1
620 - Engineering & allied operations
1