Dyfyniad APA

Robertson, T. (2012). The Malthusian moment: Global population growth and the birth of American environmentalism. Rutgers University Press.

Dyfyniad Arddull Chicago

Robertson, Thomas. The Malthusian Moment: Global Population Growth and the Birth of American Environmentalism. New Brunswick: Rutgers University Press, 2012.

Dyfyniad MLA

Robertson, Thomas. The Malthusian Moment: Global Population Growth and the Birth of American Environmentalism. Rutgers University Press, 2012.

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