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Classification: 100 - Philosophy & psychology
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100 - Philosophy & psychology
600 - Technology
333 - Economics of land & energy
3
170 - Ethics
2
300 - Social sciences
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320 - Political science
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370 - Education
2
700 - The arts; fine & decorative arts
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140 - Specific philosophical schools
1
200 - Religion
1
301 - Sociology & anthropology
1
363 - Other social problems & services
1
551 - Geology, hydrology & meteorology
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610 - Medicine & health
1
620 - Engineering & allied operations
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900 - History & geography
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