Classification
361 - Social problems & social welfare in general
610 - Medicine & health
333 - Economics of land & energy
3
000 - Computer science, information & general works
2
330 - Economics
2
700 - The arts; fine & decorative arts
2
140 - Specific philosophical schools
1
304 - Factors affecting social behavior
1
320 - Political science
1
363 - Other social problems & services
1
370 - Education
1
380 - Commerce, communications & transportation
1