Classification
100 - Philosophy & psychology
170 - Ethics
200 - Religion
330 - Economics
140 - Specific philosophical schools
4
300 - Social sciences
4
333 - Economics of land & energy
4
000 - Computer science, information & general works
2
320 - Political science
2
301 - Sociology & anthropology
1
363 - Other social problems & services
1
600 - Technology
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
700 - The arts; fine & decorative arts
1