Classification
610 - Medicine & health
780 - Music
900 - History & geography
600 - Technology
4
620 - Engineering & allied operations
3
700 - The arts; fine & decorative arts
3
000 - Computer science, information & general works
2
100 - Philosophy & psychology
2
300 - Social sciences
2
330 - Economics
2
370 - Education
2
170 - Ethics
1
320 - Political science
1
333 - Economics of land & energy
1
380 - Commerce, communications & transportation
1
398 - Folklore
1
530 - Physics
1
580 - Plants (Botany)
1
770 - Photography, photographs & computer art
1
791 - Public performances
1
800 - Literature & rhetoric
1