Classification
333 - Economics of land & energy
580 - Plants (Botany)
7
610 - Medicine & health
7
581 - Specific topics in natural history
6
000 - Computer science, information & general works
5
576 - Genetics & evolution
4
700 - The arts; fine & decorative arts
4
140 - Specific philosophical schools
3
600 - Technology
3
363 - Other social problems & services
2
380 - Commerce, communications & transportation
2
330 - Economics
1
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
1
551 - Geology, hydrology & meteorology
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
720 - Architecture
1
900 - History & geography
1