Classification
000 - Computer science, information & general works
2
580 - Plants (Botany)
600 - Technology
2
620 - Engineering & allied operations
2
630 - Agriculture & related technologies
2
330 - Economics
1
333 - Economics of land & energy
1
336 - Public finance
1
361 - Social problems & social welfare in general
1
370 - Education
1
610 - Medicine & health
1
658 - General management
1