Classification
100 - Philosophy & psychology
610 - Medicine & health
5
900 - History & geography
2
170 - Ethics
1
340 - Law
1
361 - Social problems & social welfare in general
1
362 - Social welfare problems & services
1
363 - Other social problems & services
1
576 - Genetics & evolution
1
581 - Specific topics in natural history
1
616 - Diseases
1
800 - Literature & rhetoric
1