Classification
320 - Political science
330 - Economics
530 - Physics
600 - Technology
900 - History & geography
000 - Computer science, information & general works
2
100 - Philosophy & psychology
2
300 - Social sciences
2
370 - Education
2
610 - Medicine & health
2
620 - Engineering & allied operations
2
700 - The arts; fine & decorative arts
2
780 - Music
2
170 - Ethics
1
333 - Economics of land & energy
1
410 - Linguistics
1
581 - Specific topics in natural history
1
630 - Agriculture & related technologies
1
720 - Architecture
1
770 - Photography, photographs & computer art
1