Classification
100 - Philosophy & psychology
3
140 - Specific philosophical schools
2
330 - Economics
3
361 - Social problems & social welfare in general
2
370 - Education
3
400 - Language
2
580 - Plants (Botany)
6
600 - Technology
2
610 - Medicine & health
154
612 - Human physiology
1
700 - The arts; fine & decorative arts
11
800 - Literature & rhetoric
2