Classification
400 - Language
3
500 - Natural sciences & mathematics
576 - Genetics & evolution
000 - Computer science, information & general works
2
100 - Philosophy & psychology
2
140 - Specific philosophical schools
2
120 - Epistemology, causation & humankind
1
170 - Ethics
1
333 - Economics of land & energy
1
340 - Law
1
530 - Physics
1