Classification
100 - Philosophy & psychology
120 - Epistemology, causation & humankind
400 - Language
333 - Economics of land & energy
3
000 - Computer science, information & general works
2
370 - Education
2
530 - Physics
2
576 - Genetics & evolution
2
700 - The arts; fine & decorative arts
2
800 - Literature & rhetoric
2
900 - History & geography
2
140 - Specific philosophical schools
1
170 - Ethics
1
200 - Religion
1
300 - Social sciences
1
301 - Sociology & anthropology
1
320 - Political science
1
330 - Economics
1
340 - Law
1
363 - Other social problems & services
1
410 - Linguistics
1
500 - Natural sciences & mathematics
1
520 - Astronomy & allied sciences
1
610 - Medicine & health
1