Gem citationer

APA (7th ed.) Citation
Estados Unidos Geological Survey. (19). Map showing intensity of mineralization by contours. U. S. Geological Survey.
Chicago Style (17th ed.) Citation
Estados Unidos Geological Survey. Map Showing Intensity of Mineralization by Contours. U. S. Geological Survey, 19.
MLA (9th ed.) Citation
Estados Unidos Geological Survey. Map Showing Intensity of Mineralization by Contours. U. S. Geological Survey, 19.
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