Classification
300 - Social sciences
658 - General management
330 - Economics
1,581
302 - Social interaction
1,559
670 - Manufacturing
1,437
500 - Natural sciences & mathematics
1,397
338 - Production
410
331 - Labor economics
235
381 - Commerce
235
650 - Management & auxiliary services
145
384 - Communications; telecommunication
119
158 - Applied psychology
115
153 - Mental processes & intelligence
102
380 - Commerce, communications & transportation
66
332 - Financial economics
58
620 - Engineering & allied operations
57
745 - Decorative arts
39
001 - Knowledge
38
368 - Insurance
30
150 - Psychology
28
000 - Computer science, information & general works
15
006 - Special computer methods
14
510 - Mathematics
14
659 - Advertising & public relations
13
519 - Probabilities & applied mathematics
10
005 - Computer programming, programs & data
9
170 - Ethics
9
304 - Factors affecting social behavior
8
362 - Social welfare problems & services
8
808 - Rhetoric & collections of literature
8
004 - Data processing & computer science
7
152 - Perception, movement, emotions & drives
7
303 - Social processes
6
374 - Adult education
6
155 - Differential & developmental psychology
5
600 - Technology
4
610 - Medicine & health
4
651 - Office services
3
800 - Literature & rhetoric
3
011 - Bibliographies
2
174 - Occupational ethics
2
320 - Political science
2
364 - Criminology
2
371 - Schools & their activities; special education
2
629 - Other branches of engineering
2
700 - The arts; fine & decorative arts
2
781 - General principles & musical forms
2
305 - Social groups
1
324 - The political process
1
333 - Economics of land & energy
1
more ...