Classification
581 - Specific topics in natural history
576 - Genetics & evolution
2
140 - Specific philosophical schools
1
170 - Ethics
1
304 - Factors affecting social behavior
1
330 - Economics
1
363 - Other social problems & services
1
370 - Education
1
551 - Geology, hydrology & meteorology
1
580 - Plants (Botany)
1
630 - Agriculture & related technologies
1
700 - The arts; fine & decorative arts
1