Classification
658 - General management
1,307
330 - Economics
485
331 - Labor economics
465
000 - Computer science, information & general works
377
005 - Computer programming, programs & data
365
500 - Natural sciences & mathematics
303
338 - Production
296
004 - Data processing & computer science
281
620 - Engineering & allied operations
212
300 - Social sciences
178
302 - Social interaction
167
384 - Communications; telecommunication
134
745 - Decorative arts
109
670 - Manufacturing
105
006 - Special computer methods
87
600 - Technology
72
621 - Applied physics
67
374 - Adult education
65
381 - Commerce
54
371 - Schools & their activities; special education
50
153 - Mental processes & intelligence
49
303 - Social processes
43
650 - Management & auxiliary services
41
158 - Applied psychology
33
332 - Financial economics
32
380 - Commerce, communications & transportation
21
368 - Insurance
17
629 - Other branches of engineering
13
001 - Knowledge
12
610 - Medicine & health
12
700 - The arts; fine & decorative arts
12
363 - Other social problems & services
11
510 - Mathematics
11
304 - Factors affecting social behavior
10
364 - Criminology
10
519 - Probabilities & applied mathematics
9
320 - Political science
8
340 - Law
8
370 - Education
8
900 - History & geography
8
170 - Ethics
6
333 - Economics of land & energy
6
343 - Military, tax, trade & industrial law
6
776 - Computer art (Digital art)
6
100 - Philosophy & psychology
5
601 - Philosophy & theory
5
720 - Architecture
5
011 - Bibliographies
4
352 - General considerations of public administration
4
604 - Special topics
4
more ...