Classification
100 - Philosophy & psychology
301 - Sociology & anthropology
370 - Education
400 - Language
300 - Social sciences
4
140 - Specific philosophical schools
2
410 - Linguistics
2
900 - History & geography
2
304 - Factors affecting social behavior
1
320 - Political science
1
333 - Economics of land & energy
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
364 - Criminology
1
380 - Commerce, communications & transportation
1
576 - Genetics & evolution
1
600 - Technology
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
700 - The arts; fine & decorative arts
1
780 - Music
1