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