Classification
658 - General management
341
330 - Economics
79
381 - Commerce
79
300 - Social sciences
33
302 - Social interaction
32
338 - Production
28
500 - Natural sciences & mathematics
26
670 - Manufacturing
22
006 - Special computer methods
17
380 - Commerce, communications & transportation
16
000 - Computer science, information & general works
10
650 - Management & auxiliary services
10
332 - Financial economics
9
659 - Advertising & public relations
6
331 - Labor economics
5
363 - Other social problems & services
5
100 - Philosophy & psychology
4
306 - Culture & institutions
4
320 - Political science
4
333 - Economics of land & energy
4
610 - Medicine & health
4
153 - Mental processes & intelligence
3
158 - Applied psychology
3
576 - Genetics & evolution
3
001 - Knowledge
2
003 - Systems
2
004 - Data processing & computer science
2
170 - Ethics
2
301 - Sociology & anthropology
2
303 - Social processes
2
339 - Macroeconomics & related topics
2
370 - Education
2
384 - Communications; telecommunication
2
657 - Accounting
2
660 - Chemical engineering
2
745 - Decorative arts
2
016 - Bibliographies of works on specific subjects
1
140 - Specific philosophical schools
1
174 - Occupational ethics
1
327 - International relations
1
337 - International economics
1
340 - Law
1
350 - Public administration & military science
1
351 - Public administration
1
371 - Schools & their activities; special education
1
378 - Higher education
1
400 - Language
1
410 - Linguistics
1
519 - Probabilities & applied mathematics
1
520 - Astronomy & allied sciences
1
more ...