Classification
300 - Social sciences
31
330 - Economics
21
340 - Law
18
658 - General management
18
301 - Sociology & anthropology
16
320 - Political science
8
616 - Diseases
8
650 - Management & auxiliary services
7
001 - Knowledge
6
306 - Culture & institutions
6
100 - Philosophy & psychology
5
570 - Life sciences; biology
5
610 - Medicine & health
5
620 - Engineering & allied operations
5
900 - History & geography
5
005 - Computer programming, programs & data
4
150 - Psychology
4
200 - Religion
4
302 - Social interaction
3
530 - Physics
3
700 - The arts; fine & decorative arts
3
800 - Literature & rhetoric
3
004 - Data processing & computer science
2
070 - News media, journalism & publishing
2
174 - Occupational ethics
2
304 - Factors affecting social behavior
2
305 - Social groups
2
332 - Financial economics
2
333 - Economics of land & energy
2
338 - Production
2
361 - Social problems & social welfare in general
2
370 - Education
2
510 - Mathematics
2
576 - Genetics & evolution
2
809 - History, description & criticism
2
111 - Ontology
1
126 - The self
1
140 - Specific philosophical schools
1
142 - Critical philosophy
1
170 - Ethics
1
194 - Philosophy of France
1
327 - International relations
1
337 - International economics
1
339 - Macroeconomics & related topics
1
343 - Military, tax, trade & industrial law
1
364 - Criminology
1
378 - Higher education
1
384 - Communications; telecommunication
1
500 - Natural sciences & mathematics
1
571 - Physiology & related subjects
1
more ...