Classification
320 - Political science
610 - Medicine & health
16
330 - Economics
3
900 - History & geography
3
000 - Computer science, information & general works
2
170 - Ethics
2
301 - Sociology & anthropology
2
700 - The arts; fine & decorative arts
2
140 - Specific philosophical schools
1
302 - Social interaction
1
333 - Economics of land & energy
1
340 - Law
1
580 - Plants (Botany)
1