Classification
340 - Law
610 - Medicine & health
140 - Specific philosophical schools
6
700 - The arts; fine & decorative arts
6
320 - Political science
5
330 - Economics
5
380 - Commerce, communications & transportation
4
000 - Computer science, information & general works
3
333 - Economics of land & energy
3
363 - Other social problems & services
3
170 - Ethics
2
300 - Social sciences
2
361 - Social problems & social welfare in general
2
600 - Technology
2
630 - Agriculture & related technologies
2
304 - Factors affecting social behavior
1
364 - Criminology
1
500 - Natural sciences & mathematics
1
551 - Geology, hydrology & meteorology
1
580 - Plants (Botany)
1
612 - Human physiology
1
800 - Literature & rhetoric
1