Classification
000 - Computer science, information & general works
1
304 - Factors affecting social behavior
2
320 - Political science
3
330 - Economics
1
333 - Economics of land & energy
3
336 - Public finance
1
363 - Other social problems & services
2
370 - Education
580 - Plants (Botany)
1
600 - Technology
1
610 - Medicine & health
2
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
658 - General management
1