Classification
100 - Philosophy & psychology
170 - Ethics
363 - Other social problems & services
700 - The arts; fine & decorative arts
200 - Religion
7
320 - Political science
7
140 - Specific philosophical schools
5
333 - Economics of land & energy
5
330 - Economics
4
300 - Social sciences
3
340 - Law
3
581 - Specific topics in natural history
3
120 - Epistemology, causation & humankind
1
370 - Education
1
500 - Natural sciences & mathematics
1
530 - Physics
1
551 - Geology, hydrology & meteorology
1
580 - Plants (Botany)
1
600 - Technology
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
800 - Literature & rhetoric
1
900 - History & geography
1