Classification
580 - Plants (Botany)
900 - History & geography
600 - Technology
10
620 - Engineering & allied operations
9
700 - The arts; fine & decorative arts
7
610 - Medicine & health
5
140 - Specific philosophical schools
4
576 - Genetics & evolution
3
581 - Specific topics in natural history
3
000 - Computer science, information & general works
2
330 - Economics
2
333 - Economics of land & energy
2
363 - Other social problems & services
2
414 - Phonology & phonetics
2
630 - Agriculture & related technologies
2
658 - General management
2
297 - Islam, Babism & Bahai Faith
1
304 - Factors affecting social behavior
1
340 - Law
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
1
800 - Literature & rhetoric
1