Classification
576 - Genetics & evolution
600 - Technology
3
140 - Specific philosophical schools
2
330 - Economics
2
363 - Other social problems & services
2
380 - Commerce, communications & transportation
2
610 - Medicine & health
2
900 - History & geography
2
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
300 - Social sciences
1
320 - Political science
1
333 - Economics of land & energy
1
350 - Public administration & military science
1
370 - Education
1
400 - Language
1
410 - Linguistics
1
581 - Specific topics in natural history
1
658 - General management
1
700 - The arts; fine & decorative arts
1
800 - Literature & rhetoric
1