APA (7th ed.) Zitazioa

McGhee, G. R. (2013). When the invasion of land failed: The legacy of the Devonian extinctions. Columbia University Press.

Chicago Style (17th ed.) Zitazioa

McGhee, George R. When the Invasion of Land Failed: The Legacy of the Devonian Extinctions. New York: Columbia University Press, 2013.

MLA (9th ed.) Zitazioa

McGhee, George R. When the Invasion of Land Failed: The Legacy of the Devonian Extinctions. Columbia University Press, 2013.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.