Classification
304 - Factors affecting social behavior
380 - Commerce, communications & transportation
333 - Economics of land & energy
3
610 - Medicine & health
3
000 - Computer science, information & general works
2
140 - Specific philosophical schools
2
363 - Other social problems & services
2
580 - Plants (Botany)
2
700 - The arts; fine & decorative arts
2
340 - Law
1
530 - Physics
1