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