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