APA (7 वां संस्करण) प्रशस्ति पत्र
Kay, W. D. (2005). Defining NASA: The historical debate over the agency's mission. State University of New York Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Kay, W. D. Defining NASA: The Historical Debate over the Agency's Mission. Albany: State University of New York Press, 2005.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Kay, W. D. Defining NASA: The Historical Debate over the Agency's Mission. State University of New York Press, 2005.
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