Cita APA (7a ed.)

Koerner, D., & LeVay, S. (2000). Here be dragons: The scientific quest for extraterrestrial life. Oxford University Press.

Cita Chicago Style (17a ed.)

Koerner, David, y Simon LeVay. Here Be Dragons: The Scientific Quest for Extraterrestrial Life. New York: Oxford University Press, 2000.

Cita MLA (8a ed.)

Koerner, David, y Simon LeVay. Here Be Dragons: The Scientific Quest for Extraterrestrial Life. Oxford University Press, 2000.