Gem citationer
APA (7th ed.) Citation
Root Samuel I. (1971). Geology and mineral resources of Northeastern Franklin County, Pennsylvania. Department of Environmental Resources.
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Chicago Style (17th ed.) Citation
Root Samuel I. Geology and Mineral Resources of Northeastern Franklin County, Pennsylvania. Department of Environmental Resources, 1971.
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MLA (9th ed.) Citation
Root Samuel I. Geology and Mineral Resources of Northeastern Franklin County, Pennsylvania. Department of Environmental Resources, 1971.
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