Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.