Classification
330 - Economics
3,735
658 - General management
560
368 - Insurance
333
332 - Financial economics
223
363 - Other social problems & services
65
300 - Social sciences
59
333 - Economics of land & energy
53
338 - Production
50
700 - The arts; fine & decorative arts
46
000 - Computer science, information & general works
45
600 - Technology
45
005 - Computer programming, programs & data
41
500 - Natural sciences & mathematics
41
610 - Medicine & health
41
620 - Engineering & allied operations
38
670 - Manufacturing
36
551 - Geology, hydrology & meteorology
33
302 - Social interaction
32
320 - Political science
26
657 - Accounting
25
331 - Labor economics
24
380 - Commerce, communications & transportation
23
900 - History & geography
22
140 - Specific philosophical schools
15
519 - Probabilities & applied mathematics
14
001 - Knowledge
11
006 - Special computer methods
10
003 - Systems
9
153 - Mental processes & intelligence
9
304 - Factors affecting social behavior
9
364 - Criminology
9
581 - Specific topics in natural history
9
621 - Applied physics
9
004 - Data processing & computer science
8
339 - Macroeconomics & related topics
8
346 - Private law
8
381 - Commerce
8
370 - Education
7
570 - Life sciences; biology
6
630 - Agriculture & related technologies
6
100 - Philosophy & psychology
5
340 - Law
5
510 - Mathematics
5
576 - Genetics & evolution
5
650 - Management & auxiliary services
5
720 - Architecture
5
361 - Social problems & social welfare in general
4
374 - Adult education
4
629 - Other branches of engineering
4
690 - Buildings
4
more ...