Classification
363 - Other social problems & services
380 - Commerce, communications & transportation
580 - Plants (Botany)
600 - Technology
620 - Engineering & allied operations
700 - The arts; fine & decorative arts
12
333 - Economics of land & energy
11
900 - History & geography
9
610 - Medicine & health
6
000 - Computer science, information & general works
4
330 - Economics
4
630 - Agriculture & related technologies
4
140 - Specific philosophical schools
3
340 - Law
3
658 - General management
3
720 - Architecture
3
170 - Ethics
2
300 - Social sciences
2
400 - Language
2
540 - Chemistry & allied sciences
2
576 - Genetics & evolution
2
800 - Literature & rhetoric
2
320 - Political science
1
370 - Education
1
551 - Geology, hydrology & meteorology
1