Classification
140 - Specific philosophical schools
333 - Economics of land & energy
576 - Genetics & evolution
600 - Technology
380 - Commerce, communications & transportation
8
700 - The arts; fine & decorative arts
7
363 - Other social problems & services
5
610 - Medicine & health
5
620 - Engineering & allied operations
4
000 - Computer science, information & general works
3
330 - Economics
3
340 - Law
3
580 - Plants (Botany)
3
900 - History & geography
3
170 - Ethics
2
300 - Social sciences
2
630 - Agriculture & related technologies
2
657 - Accounting
2
720 - Architecture
2
800 - Literature & rhetoric
2
304 - Factors affecting social behavior
1
320 - Political science
1
370 - Education
1
500 - Natural sciences & mathematics
1
581 - Specific topics in natural history
1