Classification
380 - Commerce, communications & transportation
580 - Plants (Botany)
5
610 - Medicine & health
630 - Agriculture & related technologies
700 - The arts; fine & decorative arts
000 - Computer science, information & general works
4
363 - Other social problems & services
4
600 - Technology
4
333 - Economics of land & energy
3
620 - Engineering & allied operations
3
551 - Geology, hydrology & meteorology
2
140 - Specific philosophical schools
1
330 - Economics
1
370 - Education
1
612 - Human physiology
1
658 - General management
1