Classification
580 - Plants (Botany)
333 - Economics of land & energy
3
600 - Technology
3
610 - Medicine & health
2
140 - Specific philosophical schools
1
170 - Ethics
1
320 - Political science
1
330 - Economics
1
340 - Law
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
581 - Specific topics in natural history
1
615 - Pharmacology & therapeutics
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
658 - General management
1
700 - The arts; fine & decorative arts
1