Classification
340 - Law
600 - Technology
700 - The arts; fine & decorative arts
8
140 - Specific philosophical schools
7
363 - Other social problems & services
7
610 - Medicine & health
6
620 - Engineering & allied operations
5
330 - Economics
4
000 - Computer science, information & general works
3
170 - Ethics
3
300 - Social sciences
3
333 - Economics of land & energy
3
380 - Commerce, communications & transportation
3
630 - Agriculture & related technologies
3
900 - History & geography
3
320 - Political science
2
370 - Education
2
540 - Chemistry & allied sciences
2
576 - Genetics & evolution
2
580 - Plants (Botany)
2
720 - Architecture
2
800 - Literature & rhetoric
2
304 - Factors affecting social behavior
1
350 - Public administration & military science
1
361 - Social problems & social welfare in general
1
400 - Language
1
500 - Natural sciences & mathematics
1
581 - Specific topics in natural history
1
612 - Human physiology
1