Lovich, J. E., & Gibbons, W. (2021). Turtles of the world: A guide to every family. Princeton University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLovich, Jeffrey E., और Whit Gibbons. Turtles of the World: A Guide to Every Family. Princeton, New Jersey: Princeton University Press, 2021.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLovich, Jeffrey E., और Whit Gibbons. Turtles of the World: A Guide to Every Family. Princeton University Press, 2021.
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