Classification
100 - Philosophy & psychology
600 - Technology
610 - Medicine & health
3
900 - History & geography
620 - Engineering & allied operations
2
700 - The arts; fine & decorative arts
2
300 - Social sciences
1
301 - Sociology & anthropology
1
320 - Political science
1
330 - Economics
1
333 - Economics of land & energy
1
370 - Education
1