Classification
000 - Computer science, information & general works
140 - Specific philosophical schools
2
363 - Other social problems & services
380 - Commerce, communications & transportation
2
600 - Technology
2
620 - Engineering & allied operations
2
700 - The arts; fine & decorative arts
2
720 - Architecture
900 - History & geography
2
330 - Economics
1
370 - Education
1
400 - Language
1
610 - Medicine & health
1