Classification
320 - Political science
363 - Other social problems & services
600 - Technology
620 - Engineering & allied operations
630 - Agriculture & related technologies
700 - The arts; fine & decorative arts
900 - History & geography
100 - Philosophy & psychology
1
300 - Social sciences
1
301 - Sociology & anthropology
1
333 - Economics of land & energy
1
610 - Medicine & health
1
720 - Architecture
1