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Encyclopedia > Wikipedia:Dewey Decimal System 55
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Wikipedia:Dewey Decimal System/55
Dewey Decimal System > 5 Natural Sciences and Mathematics > 55 Earth Sciences
- 551 Geology, hydrology, meteorology
- 552 Petrology[?]
- 553 Economic geology
- 554 Earth sciences of Europe
- 555 Earth sciences of Asia
- 556 Earth sciences of Africa
- 557 Earth sciences of North America
- 558 Earth sciences of South America
- 559 Earth sciences of other areas
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