APA (7th ed.) Zitazioa

Huggett, R. J. (1997). Environmental Change: The evolving ecosphere. Routledge.

Chicago Style (17th ed.) Zitazioa

Huggett, Richard John. Environmental Change: The Evolving Ecosphere. New York: Routledge, 1997.

MLA (9th ed.) Zitazioa

Huggett, Richard John. Environmental Change: The Evolving Ecosphere. Routledge, 1997.