Classification
140 - Specific philosophical schools
2
500 - Natural sciences & mathematics
530 - Physics
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
120 - Epistemology, causation & humankind
1
170 - Ethics
1
333 - Economics of land & energy
1
340 - Law
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1
400 - Language
1
576 - Genetics & evolution
1
620 - Engineering & allied operations
1
780 - Music
1