Classification
630 - Agriculture & related technologies
300 - Social sciences
5
600 - Technology
5
620 - Engineering & allied operations
5
900 - History & geography
4
100 - Philosophy & psychology
2
301 - Sociology & anthropology
1
320 - Political science
1
363 - Other social problems & services
1
700 - The arts; fine & decorative arts
1
720 - Architecture
1