Classification
300 - Social sciences
658 - General management
92
302 - Social interaction
73
330 - Economics
70
001 - Knowledge
64
500 - Natural sciences & mathematics
63
670 - Manufacturing
49
338 - Production
22
331 - Labor economics
18
620 - Engineering & allied operations
10
900 - History & geography
10
000 - Computer science, information & general works
9
700 - The arts; fine & decorative arts
9
381 - Commerce
8
384 - Communications; telecommunication
8
650 - Management & auxiliary services
8
005 - Computer programming, programs & data
7
332 - Financial economics
6
380 - Commerce, communications & transportation
6
158 - Applied psychology
5
301 - Sociology & anthropology
5
576 - Genetics & evolution
5
140 - Specific philosophical schools
4
363 - Other social problems & services
4
371 - Schools & their activities; special education
4
540 - Chemistry & allied sciences
4
745 - Decorative arts
4
004 - Data processing & computer science
3
100 - Philosophy & psychology
3
153 - Mental processes & intelligence
3
333 - Economics of land & energy
3
370 - Education
3
414 - Phonology & phonetics
3
551 - Geology, hydrology & meteorology
3
580 - Plants (Botany)
3
581 - Specific topics in natural history
3
610 - Medicine & health
3
612 - Human physiology
3
720 - Architecture
3
150 - Psychology
2
320 - Political science
2
340 - Law
2
361 - Social problems & social welfare in general
2
368 - Insurance
2
600 - Technology
2
006 - Special computer methods
1
152 - Perception, movement, emotions & drives
1
155 - Differential & developmental psychology
1
200 - Religion
1
254 - Parish administration
1
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