Koerner, D., & David Koerner; Simon LeVay. (2000). Here be dragons: The scientific quest for extraterrestrial life. New York: Oxford University Press.
शिकागो स्टाइल उद्धरणKoerner, David, और David Koerner; Simon LeVay. Here Be Dragons: The Scientific Quest for Extraterrestrial Life. New York: Oxford University Press, 2000.
एमएलए उद्धरणKoerner, David, और David Koerner; Simon LeVay. Here Be Dragons: The Scientific Quest for Extraterrestrial Life. New York: Oxford University Press, 2000.
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