Classification
302 - Social interaction
330 - Economics
658 - General management
300 - Social sciences
1,855
500 - Natural sciences & mathematics
1,368
670 - Manufacturing
1,356
338 - Production
461
331 - Labor economics
427
381 - Commerce
357
650 - Management & auxiliary services
295
384 - Communications; telecommunication
244
158 - Applied psychology
194
153 - Mental processes & intelligence
165
380 - Commerce, communications & transportation
142
006 - Special computer methods
113
332 - Financial economics
62
620 - Engineering & allied operations
55
001 - Knowledge
49
745 - Decorative arts
46
000 - Computer science, information & general works
36
659 - Advertising & public relations
34
368 - Insurance
30
150 - Psychology
26
170 - Ethics
24
303 - Social processes
24
155 - Differential & developmental psychology
14
510 - Mathematics
14
304 - Factors affecting social behavior
13
808 - Rhetoric & collections of literature
12
005 - Computer programming, programs & data
10
519 - Probabilities & applied mathematics
8
374 - Adult education
7
004 - Data processing & computer science
6
152 - Perception, movement, emotions & drives
6
600 - Technology
4
011 - Bibliographies
3
174 - Occupational ethics
3
362 - Social welfare problems & services
2
610 - Medicine & health
2
800 - Literature & rhetoric
2
294 - Religions of Indic origin
1
305 - Social groups
1
324 - The political process
1
346 - Private law
1
352 - General considerations of public administration
1
363 - Other social problems & services
1
364 - Criminology
1
371 - Schools & their activities; special education
1
395 - Etiquette (Manners)
1
604 - Special topics
1
more ...