Classification
658 - General management
363 - Other social problems & services
3
600 - Technology
3
000 - Computer science, information & general works
2
361 - Social problems & social welfare in general
2
580 - Plants (Botany)
2
610 - Medicine & health
2
620 - Engineering & allied operations
2
700 - The arts; fine & decorative arts
2
900 - History & geography
2
140 - Specific philosophical schools
1
330 - Economics
1
333 - Economics of land & energy
1
370 - Education
1
576 - Genetics & evolution
1
630 - Agriculture & related technologies
1
800 - Literature & rhetoric
1