Classification
330 - Economics
340 - Law
610 - Medicine & health
630 - Agriculture & related technologies
700 - The arts; fine & decorative arts
4
140 - Specific philosophical schools
3
600 - Technology
3
000 - Computer science, information & general works
2
304 - Factors affecting social behavior
1
333 - Economics of land & energy
1
350 - Public administration & military science
1
361 - Social problems & social welfare in general
1
363 - Other social problems & services
1
551 - Geology, hydrology & meteorology
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
1
612 - Human physiology
1
620 - Engineering & allied operations
1
658 - General management
1