Classification
000 - Computer science, information & general works
7
580 - Plants (Botany)
3
700 - The arts; fine & decorative arts
3
333 - Economics of land & energy
2
363 - Other social problems & services
2
551 - Geology, hydrology & meteorology
2
650 - Management & auxiliary services
2
140 - Specific philosophical schools
1
320 - Political science
1
330 - Economics
1
340 - Law
1
576 - Genetics & evolution
1
610 - Medicine & health
1
630 - Agriculture & related technologies
1