Classification
000 - Computer science, information & general works
4
140 - Specific philosophical schools
330 - Economics
363 - Other social problems & services
576 - Genetics & evolution
600 - Technology
620 - Engineering & allied operations
380 - Commerce, communications & transportation
3
700 - The arts; fine & decorative arts
2
900 - History & geography
2
320 - Political science
1
333 - Economics of land & energy
1
340 - Law
1
400 - Language
1
580 - Plants (Botany)
1
657 - Accounting
1
658 - General management
1
720 - Architecture
1