Classification
140 - Specific philosophical schools
304 - Factors affecting social behavior
610 - Medicine & health
363 - Other social problems & services
3
600 - Technology
2
620 - Engineering & allied operations
2
700 - The arts; fine & decorative arts
2
900 - History & geography
2
200 - Religion
1
320 - Political science
1
333 - Economics of land & energy
1
361 - Social problems & social welfare in general
1
380 - Commerce, communications & transportation
1