Classification
000 - Computer science, information & general works
363 - Other social problems & services
380 - Commerce, communications & transportation
600 - Technology
630 - Agriculture & related technologies
700 - The arts; fine & decorative arts
580 - Plants (Botany)
3
610 - Medicine & health
3
620 - Engineering & allied operations
3
333 - Economics of land & energy
2
170 - Ethics
1
300 - Social sciences
1
320 - Political science
1
551 - Geology, hydrology & meteorology
1
612 - Human physiology
1