Capainolo, P., & Butler, C. A. (2010). How fast can a falcon dive?: Fascinating answers to questions about birds of prey. Rutgers University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCapainolo, Peter, और Carol A. Butler. How Fast Can a Falcon Dive?: Fascinating Answers to Questions About Birds of Prey. New Brunswick, N.J.: Rutgers University Press, 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCapainolo, Peter, और Carol A. Butler. How Fast Can a Falcon Dive?: Fascinating Answers to Questions About Birds of Prey. Rutgers University Press, 2010.
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