Classification
400 - Language
610 - Medicine & health
380 - Commerce, communications & transportation
10
600 - Technology
10
700 - The arts; fine & decorative arts
10
333 - Economics of land & energy
6
370 - Education
6
900 - History & geography
6
000 - Computer science, information & general works
5
140 - Specific philosophical schools
4
100 - Philosophy & psychology
3
304 - Factors affecting social behavior
3
620 - Engineering & allied operations
3
720 - Architecture
3
800 - Literature & rhetoric
3
300 - Social sciences
2
320 - Political science
2
330 - Economics
2
410 - Linguistics
2
120 - Epistemology, causation & humankind
1
301 - Sociology & anthropology
1
363 - Other social problems & services
1
500 - Natural sciences & mathematics
1
520 - Astronomy & allied sciences
1
540 - Chemistry & allied sciences
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
615 - Pharmacology & therapeutics
1
658 - General management
1