Classification
340 - Law
500 - Natural sciences & mathematics
530 - Physics
333 - Economics of land & energy
8
000 - Computer science, information & general works
7
700 - The arts; fine & decorative arts
6
380 - Commerce, communications & transportation
4
600 - Technology
3
900 - History & geography
3
100 - Philosophy & psychology
2
330 - Economics
2
576 - Genetics & evolution
2
620 - Engineering & allied operations
2
120 - Epistemology, causation & humankind
1
140 - Specific philosophical schools
1
170 - Ethics
1
320 - Political science
1
400 - Language
1
414 - Phonology & phonetics
1
540 - Chemistry & allied sciences
1
590 - Animals (Zoology)
1
658 - General management
1