Classification
100 - Philosophy & psychology
340 - Law
4
576 - Genetics & evolution
140 - Specific philosophical schools
3
000 - Computer science, information & general works
2
120 - Epistemology, causation & humankind
2
170 - Ethics
2
320 - Political science
2
600 - Technology
2
900 - History & geography
2
300 - Social sciences
1
301 - Sociology & anthropology
1
330 - Economics
1
333 - Economics of land & energy
1
370 - Education
1
400 - Language
1
500 - Natural sciences & mathematics
1
530 - Physics
1
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
1