Classification
320 - Political science
576 - Genetics & evolution
580 - Plants (Botany)
600 - Technology
2
620 - Engineering & allied operations
2
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
170 - Ethics
1
304 - Factors affecting social behavior
1
333 - Economics of land & energy
1
340 - Law
1
363 - Other social problems & services
1
630 - Agriculture & related technologies
1
658 - General management
1
700 - The arts; fine & decorative arts
1