Classification
000 - Computer science, information & general works
5
600 - Technology
4
330 - Economics
3
610 - Medicine & health
3
700 - The arts; fine & decorative arts
3
100 - Philosophy & psychology
1
300 - Social sciences
1
320 - Political science
1
333 - Economics of land & energy
1
363 - Other social problems & services
1
370 - Education
1
380 - Commerce, communications & transportation
1
540 - Chemistry & allied sciences
1
576 - Genetics & evolution
1
780 - Music
1