Classification
576 - Genetics & evolution
610 - Medicine & health
580 - Plants (Botany)
5
000 - Computer science, information & general works
4
333 - Economics of land & energy
4
380 - Commerce, communications & transportation
4
140 - Specific philosophical schools
3
600 - Technology
3
700 - The arts; fine & decorative arts
2
900 - History & geography
2
363 - Other social problems & services
1
540 - Chemistry & allied sciences
1
581 - Specific topics in natural history
1
630 - Agriculture & related technologies
1