Classification
140 - Specific philosophical schools
170 - Ethics
333 - Economics of land & energy
2
700 - The arts; fine & decorative arts
100 - Philosophy & psychology
1
120 - Epistemology, causation & humankind
1
304 - Factors affecting social behavior
1
320 - Political science
1
330 - Economics
1
340 - Law
1
363 - Other social problems & services
1
370 - Education
1
530 - Physics
1
551 - Geology, hydrology & meteorology
1
600 - Technology
1