Cofnodi Dyfyniadau
Dyfyniad APA
Payne C. Marshall. (1965). Bedrock geologic map, Minneapolis, St. Paul and Vicinity. U. S. Geological Survey.
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Dyfyniad Arddull Chicago
Payne C. Marshall. Bedrock Geologic Map, Minneapolis, St. Paul and Vicinity. U. S. Geological Survey, 1965.
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Dyfyniad MLA
Payne C. Marshall. Bedrock Geologic Map, Minneapolis, St. Paul and Vicinity. U. S. Geological Survey, 1965.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.