Classification
140 - Specific philosophical schools
620 - Engineering & allied operations
600 - Technology
3
610 - Medicine & health
3
540 - Chemistry & allied sciences
2
700 - The arts; fine & decorative arts
2
000 - Computer science, information & general works
1
170 - Ethics
1
361 - Social problems & social welfare in general
1
370 - Education
1
400 - Language
1
500 - Natural sciences & mathematics
1
612 - Human physiology
1
900 - History & geography
1