Classification
340 - Law
580 - Plants (Botany)
620 - Engineering & allied operations
600 - Technology
13
700 - The arts; fine & decorative arts
9
900 - History & geography
9
333 - Economics of land & energy
7
380 - Commerce, communications & transportation
6
630 - Agriculture & related technologies
6
610 - Medicine & health
5
140 - Specific philosophical schools
4
363 - Other social problems & services
4
170 - Ethics
3
330 - Economics
3
500 - Natural sciences & mathematics
3
576 - Genetics & evolution
3
300 - Social sciences
2
320 - Political science
2
551 - Geology, hydrology & meteorology
2
658 - General management
2
720 - Architecture
2
800 - Literature & rhetoric
2
000 - Computer science, information & general works
1
400 - Language
1
540 - Chemistry & allied sciences
1