Classification
100 - Philosophy & psychology
300 - Social sciences
5
400 - Language
600 - Technology
900 - History & geography
320 - Political science
4
330 - Economics
4
620 - Engineering & allied operations
4
780 - Music
4
370 - Education
3
380 - Commerce, communications & transportation
3
410 - Linguistics
3
700 - The arts; fine & decorative arts
3
630 - Agriculture & related technologies
2
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
301 - Sociology & anthropology
1
340 - Law
1
576 - Genetics & evolution
1
658 - General management
1