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