Classification
300 - Social sciences
720 - Architecture
700 - The arts; fine & decorative arts
4
140 - Specific philosophical schools
3
301 - Sociology & anthropology
2
333 - Economics of land & energy
2
900 - History & geography
2
320 - Political science
1
340 - Law
1
410 - Linguistics
1
620 - Engineering & allied operations
1
800 - Literature & rhetoric
1