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