Classification
140 - Specific philosophical schools
170 - Ethics
340 - Law
620 - Engineering & allied operations
600 - Technology
4
700 - The arts; fine & decorative arts
4
576 - Genetics & evolution
3
580 - Plants (Botany)
3
610 - Medicine & health
3
630 - Agriculture & related technologies
3
900 - History & geography
3
300 - Social sciences
2
320 - Political science
2
333 - Economics of land & energy
2
363 - Other social problems & services
2
380 - Commerce, communications & transportation
2
720 - Architecture
2
800 - Literature & rhetoric
2
100 - Philosophy & psychology
1
361 - Social problems & social welfare in general
1
658 - General management
1