Classification
340 - Law
580 - Plants (Botany)
600 - Technology
620 - Engineering & allied operations
8
333 - Economics of land & energy
7
900 - History & geography
6
630 - Agriculture & related technologies
5
700 - The arts; fine & decorative arts
5
380 - Commerce, communications & transportation
4
330 - Economics
3
363 - Other social problems & services
3
610 - Medicine & health
3
140 - Specific philosophical schools
2
170 - Ethics
2
300 - Social sciences
2
500 - Natural sciences & mathematics
2
551 - Geology, hydrology & meteorology
2
576 - Genetics & evolution
2
720 - Architecture
2
800 - Literature & rhetoric
2
000 - Computer science, information & general works
1
320 - Political science
1
658 - General management
1