Classification
170 - Ethics
200 - Religion
320 - Political science
600 - Technology
000 - Computer science, information & general works
2
100 - Philosophy & psychology
2
140 - Specific philosophical schools
2
300 - Social sciences
2
700 - The arts; fine & decorative arts
2
120 - Epistemology, causation & humankind
1
301 - Sociology & anthropology
1
330 - Economics
1
333 - Economics of land & energy
1
340 - Law
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
363 - Other social problems & services
1
364 - Criminology
1
581 - Specific topics in natural history
1
620 - Engineering & allied operations
1