Classification
363 - Other social problems & services
540 - Chemistry & allied sciences
630 - Agriculture & related technologies
700 - The arts; fine & decorative arts
600 - Technology
6
620 - Engineering & allied operations
6
330 - Economics
5
610 - Medicine & health
5
000 - Computer science, information & general works
4
333 - Economics of land & energy
4
300 - Social sciences
2
320 - Political science
2
551 - Geology, hydrology & meteorology
2
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
301 - Sociology & anthropology
1
370 - Education
1
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
1
530 - Physics
1
581 - Specific topics in natural history
1
612 - Human physiology
1