Watkins, T. H. (1971). Gold and silver in the West: The illustrated history of an American dream. American West Pub. Co.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWatkins, T. H. Gold and Silver in the West: The Illustrated History of an American Dream. Palo Alto, Calif.: American West Pub. Co, 1971.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWatkins, T. H. Gold and Silver in the West: The Illustrated History of an American Dream. American West Pub. Co, 1971.
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