Classification
300 - Social sciences
380 - Commerce, communications & transportation
384 - Communications; telecommunication
174
658 - General management
163
330 - Economics
157
302 - Social interaction
140
500 - Natural sciences & mathematics
72
670 - Manufacturing
58
320 - Political science
39
331 - Labor economics
34
700 - The arts; fine & decorative arts
32
600 - Technology
31
900 - History & geography
26
301 - Sociology & anthropology
25
370 - Education
25
000 - Computer science, information & general works
24
140 - Specific philosophical schools
24
338 - Production
22
363 - Other social problems & services
15
620 - Engineering & allied operations
15
650 - Management & auxiliary services
15
153 - Mental processes & intelligence
14
400 - Language
14
333 - Economics of land & energy
13
610 - Medicine & health
13
100 - Philosophy & psychology
11
340 - Law
11
200 - Religion
8
381 - Commerce
8
576 - Genetics & evolution
8
170 - Ethics
7
410 - Linguistics
7
304 - Factors affecting social behavior
6
720 - Architecture
6
800 - Literature & rhetoric
6
808 - Rhetoric & collections of literature
6
540 - Chemistry & allied sciences
5
551 - Geology, hydrology & meteorology
5
580 - Plants (Botany)
5
581 - Specific topics in natural history
5
150 - Psychology
4
158 - Applied psychology
4
414 - Phonology & phonetics
4
630 - Agriculture & related technologies
4
006 - Special computer methods
3
612 - Human physiology
3
659 - Advertising & public relations
3
780 - Music
3
791 - Public performances
3
152 - Perception, movement, emotions & drives
2
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