Classification
000 - Computer science, information & general works
100 - Philosophy & psychology
140 - Specific philosophical schools
170 - Ethics
320 - Political science
330 - Economics
363 - Other social problems & services
2
610 - Medicine & health
300 - Social sciences
1
301 - Sociology & anthropology
1
333 - Economics of land & energy
1
340 - Law
1
361 - Social problems & social welfare in general
1
364 - Criminology
1
370 - Education
1
380 - Commerce, communications & transportation
1
600 - Technology
1
620 - Engineering & allied operations
1
650 - Management & auxiliary services
1
657 - Accounting
1
658 - General management
1
900 - History & geography
1