Classification
500 - Natural sciences & mathematics
658 - General management
1,448
330 - Economics
1,443
300 - Social sciences
1,398
670 - Manufacturing
1,380
302 - Social interaction
1,379
338 - Production
280
381 - Commerce
220
331 - Labor economics
160
650 - Management & auxiliary services
109
384 - Communications; telecommunication
95
158 - Applied psychology
88
153 - Mental processes & intelligence
85
380 - Commerce, communications & transportation
58
332 - Financial economics
57
620 - Engineering & allied operations
46
745 - Decorative arts
34
368 - Insurance
29
001 - Knowledge
22
006 - Special computer methods
16
510 - Mathematics
15
659 - Advertising & public relations
13
005 - Computer programming, programs & data
10
519 - Probabilities & applied mathematics
9
808 - Rhetoric & collections of literature
8
150 - Psychology
6
170 - Ethics
6
304 - Factors affecting social behavior
6
374 - Adult education
6
152 - Perception, movement, emotions & drives
5
155 - Differential & developmental psychology
5
303 - Social processes
5
004 - Data processing & computer science
4
333 - Economics of land & energy
4
600 - Technology
4
000 - Computer science, information & general works
2
324 - The political process
2
343 - Military, tax, trade & industrial law
2
364 - Criminology
2
800 - Literature & rhetoric
2
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
305 - Social groups
1
344 - Labor, social, education & cultural law
1
352 - General considerations of public administration
1
371 - Schools & their activities; special education
1
520 - Astronomy & allied sciences
1
604 - Special topics
1
609 - Historical, geographic & persons treatment
1
629 - Other branches of engineering
1
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