Classification
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
330 - Economics
363 - Other social problems & services
380 - Commerce, communications & transportation
576 - Genetics & evolution
600 - Technology
620 - Engineering & allied operations
1
658 - General management
1
700 - The arts; fine & decorative arts
720 - Architecture
1
900 - History & geography