Classification
100 - Philosophy & psychology
320 - Political science
330 - Economics
3
380 - Commerce, communications & transportation
600 - Technology
3
700 - The arts; fine & decorative arts
900 - History & geography
300 - Social sciences
2
370 - Education
2
400 - Language
2
620 - Engineering & allied operations
2
780 - Music
2
333 - Economics of land & energy
1
340 - Law
1
363 - Other social problems & services
1
410 - Linguistics
1
576 - Genetics & evolution
1
630 - Agriculture & related technologies
1
658 - General management
1