Classification
140 - Specific philosophical schools
600 - Technology
6
700 - The arts; fine & decorative arts
6
330 - Economics
5
000 - Computer science, information & general works
4
380 - Commerce, communications & transportation
4
610 - Medicine & health
4
620 - Engineering & allied operations
3
900 - History & geography
3
333 - Economics of land & energy
2
612 - Human physiology
2
100 - Philosophy & psychology
1
320 - Political science
1
363 - Other social problems & services
1
370 - Education
1
630 - Agriculture & related technologies
1
720 - Architecture
1