Classification
363 - Other social problems & services
6
380 - Commerce, communications & transportation
576 - Genetics & evolution
610 - Medicine & health
140 - Specific philosophical schools
5
300 - Social sciences
5
333 - Economics of land & energy
5
580 - Plants (Botany)
5
620 - Engineering & allied operations
5
700 - The arts; fine & decorative arts
5
000 - Computer science, information & general works
4
551 - Geology, hydrology & meteorology
4
581 - Specific topics in natural history
4
414 - Phonology & phonetics
3
500 - Natural sciences & mathematics
3
540 - Chemistry & allied sciences
3
612 - Human physiology
3
800 - Literature & rhetoric
3
900 - History & geography
3
170 - Ethics
2
340 - Law
2
600 - Technology
2
630 - Agriculture & related technologies
2
720 - Architecture
2
304 - Factors affecting social behavior
1
364 - Criminology
1