Classification
330 - Economics
2
333 - Economics of land & energy
363 - Other social problems & services
2
620 - Engineering & allied operations
2
900 - History & geography
2
000 - Computer science, information & general works
1
297 - Islam, Babism & Bahai Faith
1
370 - Education
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
600 - Technology
1
700 - The arts; fine & decorative arts
1
720 - Architecture
1