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