Classification
363 - Other social problems & services
600 - Technology
5
620 - Engineering & allied operations
630 - Agriculture & related technologies
900 - History & geography
3
330 - Economics
2
333 - Economics of land & energy
2
580 - Plants (Botany)
2
700 - The arts; fine & decorative arts
2
140 - Specific philosophical schools
1
297 - Islam, Babism & Bahai Faith
1
300 - Social sciences
1
301 - Sociology & anthropology
1
320 - Political science
1
581 - Specific topics in natural history
1
610 - Medicine & health
1
658 - General management
1
720 - Architecture
1