Classification
380 - Commerce, communications & transportation
658 - General management
300 - Social sciences
76
384 - Communications; telecommunication
76
302 - Social interaction
49
330 - Economics
46
331 - Labor economics
13
500 - Natural sciences & mathematics
10
670 - Manufacturing
9
650 - Management & auxiliary services
8
000 - Computer science, information & general works
7
153 - Mental processes & intelligence
7
338 - Production
7
363 - Other social problems & services
6
610 - Medicine & health
5
158 - Applied psychology
4
333 - Economics of land & energy
4
370 - Education
4
700 - The arts; fine & decorative arts
4
140 - Specific philosophical schools
3
170 - Ethics
3
381 - Commerce
3
551 - Geology, hydrology & meteorology
3
580 - Plants (Botany)
3
600 - Technology
3
620 - Engineering & allied operations
3
659 - Advertising & public relations
3
150 - Psychology
2
155 - Differential & developmental psychology
2
320 - Political science
2
630 - Agriculture & related technologies
2
808 - Rhetoric & collections of literature
2
900 - History & geography
2
006 - Special computer methods
1
028 - Reading & use of other information media
1
100 - Philosophy & psychology
1
152 - Perception, movement, emotions & drives
1
304 - Factors affecting social behavior
1
350 - Public administration & military science
1
615 - Pharmacology & therapeutics
1
720 - Architecture
1