Classification
320 - Political science
610 - Medicine & health
4
700 - The arts; fine & decorative arts
4
000 - Computer science, information & general works
3
300 - Social sciences
3
380 - Commerce, communications & transportation
3
600 - Technology
3
140 - Specific philosophical schools
2
333 - Economics of land & energy
2
370 - Education
2
400 - Language
2
551 - Geology, hydrology & meteorology
2
900 - History & geography
2
301 - Sociology & anthropology
1
360 - Social problems & services; associations
1
363 - Other social problems & services
1
410 - Linguistics
1
414 - Phonology & phonetics
1
615 - Pharmacology & therapeutics
1
620 - Engineering & allied operations
1
658 - General management
1
720 - Architecture
1