Dyfyniad APA

Houghton, J. T. (2009). Global warming: The complete briefing (Fourth edition.). Cambridge University Press.

Dyfyniad Arddull Chicago

Houghton, J. T. Global Warming: The Complete Briefing. Fourth edition. New York: Cambridge University Press, 2009.

Dyfyniad MLA

Houghton, J. T. Global Warming: The Complete Briefing. Fourth edition. Cambridge University Press, 2009.

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