Classification
320 - Political science
2
330 - Economics
2
363 - Other social problems & services
610 - Medicine & health
650 - Management & auxiliary services
657 - Accounting
2
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
170 - Ethics
1
300 - Social sciences
1
333 - Economics of land & energy
1
361 - Social problems & social welfare in general
1
380 - Commerce, communications & transportation
1
600 - Technology
1
658 - General management
1