Classification
600 - Technology
700 - The arts; fine & decorative arts
000 - Computer science, information & general works
8
363 - Other social problems & services
7
620 - Engineering & allied operations
7
900 - History & geography
7
320 - Political science
5
330 - Economics
5
333 - Economics of land & energy
5
380 - Commerce, communications & transportation
5
100 - Philosophy & psychology
4
576 - Genetics & evolution
4
370 - Education
3
400 - Language
3
630 - Agriculture & related technologies
3
140 - Specific philosophical schools
2
170 - Ethics
2
300 - Social sciences
2
410 - Linguistics
2
580 - Plants (Botany)
2
200 - Religion
1
304 - Factors affecting social behavior
1
520 - Astronomy & allied sciences
1
530 - Physics
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
1
581 - Specific topics in natural history
1
610 - Medicine & health
1
780 - Music
1
791 - Public performances
1
800 - Literature & rhetoric
1