Lunde, D. P. (2016). The naturalist: Theodore Roosevelt, a lifetime of exploration, and the triumph of American natural history (First edition.). Crown Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLunde, Darrin P. The Naturalist: Theodore Roosevelt, a Lifetime of Exploration, and the Triumph of American Natural History. First edition. New York: Crown Publishers, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLunde, Darrin P. The Naturalist: Theodore Roosevelt, a Lifetime of Exploration, and the Triumph of American Natural History. First edition. Crown Publishers, 2016.
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