Classification
100 - Philosophy & psychology
370 - Education
380 - Commerce, communications & transportation
600 - Technology
000 - Computer science, information & general works
5
320 - Political science
4
300 - Social sciences
3
330 - Economics
3
620 - Engineering & allied operations
3
700 - The arts; fine & decorative arts
3
780 - Music
3
900 - History & geography
3
140 - Specific philosophical schools
2
400 - Language
2
610 - Medicine & health
2
170 - Ethics
1
340 - Law
1
410 - Linguistics
1
500 - Natural sciences & mathematics
1
581 - Specific topics in natural history
1
630 - Agriculture & related technologies
1
658 - General management
1