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