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