Classification
100 - Philosophy & psychology
363 - Other social problems & services
370 - Education
600 - Technology
620 - Engineering & allied operations
3
700 - The arts; fine & decorative arts
3
000 - Computer science, information & general works
2
900 - History & geography
2
140 - Specific philosophical schools
1
500 - Natural sciences & mathematics
1
540 - Chemistry & allied sciences
1
610 - Medicine & health
1