Dyfyniad APA

Singer, P. (2009). The life you can save: Cting now to end world poverty (First edition.). AUWSF.

Dyfyniad Arddull Chicago

Singer, Peter. The Life You Can Save: Cting Now to End World Poverty. First edition. New York: AUWSF, 2009.

Dyfyniad MLA

Singer, Peter. The Life You Can Save: Cting Now to End World Poverty. First edition. AUWSF, 2009.

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