Classification
120 - Epistemology, causation & humankind
500 - Natural sciences & mathematics
2
581 - Specific topics in natural history
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
170 - Ethics
1
200 - Religion
1
300 - Social sciences
1
333 - Economics of land & energy
1
363 - Other social problems & services
1
370 - Education
1
530 - Physics
1
580 - Plants (Botany)
1
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
1