Classification
363 - Other social problems & services
500 - Natural sciences & mathematics
700 - The arts; fine & decorative arts
000 - Computer science, information & general works
4
610 - Medicine & health
3
800 - Literature & rhetoric
3
330 - Economics
2
551 - Geology, hydrology & meteorology
2
580 - Plants (Botany)
2
600 - Technology
2
630 - Agriculture & related technologies
2
140 - Specific philosophical schools
1
300 - Social sciences
1
333 - Economics of land & energy
1
340 - Law
1
370 - Education
1
400 - Language
1
620 - Engineering & allied operations
1
658 - General management
1