Classification
000 - Computer science, information & general works
330 - Economics
363 - Other social problems & services
576 - Genetics & evolution
658 - General management
333 - Economics of land & energy
2
600 - Technology
2
700 - The arts; fine & decorative arts
2
140 - Specific philosophical schools
1
300 - Social sciences
1
320 - Political science
1
380 - Commerce, communications & transportation
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
720 - Architecture
1
900 - History & geography
1