Classification
140 - Specific philosophical schools
610 - Medicine & health
700 - The arts; fine & decorative arts
000 - Computer science, information & general works
4
333 - Economics of land & energy
4
370 - Education
4
600 - Technology
3
320 - Political science
2
330 - Economics
2
363 - Other social problems & services
2
380 - Commerce, communications & transportation
2
620 - Engineering & allied operations
2
900 - History & geography
2
100 - Philosophy & psychology
1
170 - Ethics
1
200 - Religion
1
304 - Factors affecting social behavior
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
630 - Agriculture & related technologies
1
658 - General management
1
720 - Architecture
1
800 - Literature & rhetoric
1