APA (7 वां संस्करण) प्रशस्ति पत्र
Shermer, M. (2002). In Darwin's shadow: The life and science of Alfred Russel Wallace : a biographical study on the psychology of history. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Shermer, Michael. In Darwin's Shadow: The Life and Science of Alfred Russel Wallace : A Biographical Study on the Psychology of History. Oxford ; New York: Oxford University Press, 2002.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Shermer, Michael. In Darwin's Shadow: The Life and Science of Alfred Russel Wallace : A Biographical Study on the Psychology of History. Oxford University Press, 2002.
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