Classification
610 - Medicine & health
3
363 - Other social problems & services
2
580 - Plants (Botany)
2
700 - The arts; fine & decorative arts
2
140 - Specific philosophical schools
1
170 - Ethics
1
304 - Factors affecting social behavior
1
333 - Economics of land & energy
1
340 - Law
1
380 - Commerce, communications & transportation
1
570 - Life sciences; biology
1
576 - Genetics & evolution
1
600 - Technology
1