Classification
000 - Computer science, information & general works
320 - Political science
363 - Other social problems & services
330 - Economics
6
333 - Economics of land & energy
6
700 - The arts; fine & decorative arts
6
300 - Social sciences
4
900 - History & geography
4
140 - Specific philosophical schools
3
600 - Technology
3
100 - Philosophy & psychology
2
200 - Religion
2
301 - Sociology & anthropology
2
620 - Engineering & allied operations
2
120 - Epistemology, causation & humankind
1
304 - Factors affecting social behavior
1
340 - Law
1
370 - Education
1
380 - Commerce, communications & transportation
1
400 - Language
1
410 - Linguistics
1
551 - Geology, hydrology & meteorology
1
630 - Agriculture & related technologies
1
658 - General management
1
720 - Architecture
1
800 - Literature & rhetoric
1