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Encyclopedia > Wikipedia:Dewey Decimal System 5
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Wikipedia:Dewey Decimal System/5
Dewey Decimal System > 5 Natural Sciences & Mathematics
- 50 Natural sciences and mathematics
- 51 Mathematics
- 52 Astronomy and allied sciences
- 53 Physics
- 54 Chemistry and allied sciences
- 55 Earth sciences
- 56 Paleontology and Paleozoology
- 57 Life sciences
- 58 Botanical sciences
- 59 Zoological sciences
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