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