Classification
330 - Economics
364 - Criminology
331 - Labor economics
20
500 - Natural sciences & mathematics
19
658 - General management
19
338 - Production
17
363 - Other social problems & services
14
005 - Computer programming, programs & data
8
300 - Social sciences
7
320 - Political science
6
340 - Law
4
360 - Social problems & services; associations
4
361 - Social problems & social welfare in general
4
001 - Knowledge
3
301 - Sociology & anthropology
2
332 - Financial economics
2
368 - Insurance
2
380 - Commerce, communications & transportation
2
600 - Technology
2
670 - Manufacturing
2
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
150 - Psychology
1
153 - Mental processes & intelligence
1
160 - Logic
1
170 - Ethics
1
200 - Religion
1
302 - Social interaction
1
333 - Economics of land & energy
1
370 - Education
1
381 - Commerce
1
576 - Genetics & evolution
1
621 - Applied physics
1
650 - Management & auxiliary services
1
700 - The arts; fine & decorative arts
1
800 - Literature & rhetoric
1
900 - History & geography
1