Classification
300 - Social sciences
320 - Political science
700 - The arts; fine & decorative arts
330 - Economics
3
301 - Sociology & anthropology
2
370 - Education
2
380 - Commerce, communications & transportation
2
600 - Technology
2
900 - History & geography
2
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
304 - Factors affecting social behavior
1
333 - Economics of land & energy
1
340 - Law
1
363 - Other social problems & services
1
650 - Management & auxiliary services
1
657 - Accounting
1
658 - General management
1
791 - Public performances
1