Millard, C. (2005). The river of doubt: Theodore Roosevelt's darkest journey (1st paperback ed.). Anchor Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMillard, Candice. The River of Doubt: Theodore Roosevelt's Darkest Journey. 1st paperback ed. New York: Anchor Books, 2005.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMillard, Candice. The River of Doubt: Theodore Roosevelt's Darkest Journey. 1st paperback ed. Anchor Books, 2005.
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