Classification
140 - Specific philosophical schools
400 - Language
800 - Literature & rhetoric
000 - Computer science, information & general works
2
700 - The arts; fine & decorative arts
2
900 - History & geography
2
100 - Philosophy & psychology
1
300 - Social sciences
1
333 - Economics of land & energy
1
410 - Linguistics
1
500 - Natural sciences & mathematics
1