Classification
100 - Philosophy & psychology
1
300 - Social sciences
1
301 - Sociology & anthropology
1
330 - Economics
333 - Economics of land & energy
3
363 - Other social problems & services
380 - Commerce, communications & transportation
1
540 - Chemistry & allied sciences
580 - Plants (Botany)
2
600 - Technology
610 - Medicine & health
2
620 - Engineering & allied operations
7
630 - Agriculture & related technologies
3
658 - General management
1
700 - The arts; fine & decorative arts
900 - History & geography
1