Classification
610 - Medicine & health
800 - Literature & rhetoric
333 - Economics of land & energy
5
330 - Economics
4
600 - Technology
4
700 - The arts; fine & decorative arts
4
140 - Specific philosophical schools
3
370 - Education
3
380 - Commerce, communications & transportation
3
400 - Language
3
100 - Philosophy & psychology
2
304 - Factors affecting social behavior
2
363 - Other social problems & services
2
900 - History & geography
2
000 - Computer science, information & general works
1
120 - Epistemology, causation & humankind
1
520 - Astronomy & allied sciences
1
620 - Engineering & allied operations
1
658 - General management
1