記錄引文
APA引文
Estados Unidos Geological Survey. (1928). General geologic map and sections of the Keweenawan and associated rocks in the lake superior copper district. U. S. Geological Survey.
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Chicago Style (17th ed.) Citation
Estados Unidos Geological Survey. General Geologic Map and Sections of the Keweenawan and Associated Rocks in the Lake Superior Copper District. U. S. Geological Survey, 1928.
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MLA引文
Estados Unidos Geological Survey. General Geologic Map and Sections of the Keweenawan and Associated Rocks in the Lake Superior Copper District. U. S. Geological Survey, 1928.
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警告：這些引文格式不一定是100％准確.