Classification
120 - Epistemology, causation & humankind
370 - Education
3
900 - History & geography
3
100 - Philosophy & psychology
1
300 - Social sciences
1
301 - Sociology & anthropology
1
320 - Political science
1
330 - Economics
1
333 - Economics of land & energy
1
540 - Chemistry & allied sciences
1
620 - Engineering & allied operations
1
658 - General management
1
920 - Biography, genealogy & insignia
1