Classification
320 - Political science
400 - Language
3
600 - Technology
610 - Medicine & health
333 - Economics of land & energy
2
380 - Commerce, communications & transportation
2
620 - Engineering & allied operations
2
700 - The arts; fine & decorative arts
2
900 - History & geography
2
000 - Computer science, information & general works
1
300 - Social sciences
1
370 - Education
1
500 - Natural sciences & mathematics
1
540 - Chemistry & allied sciences
1
615 - Pharmacology & therapeutics
1
720 - Architecture
1