Dyfyniad APA

Brown, L. R. (2008). Plan B3.0: Mobilizing to save civilization. W.W.Norton.

Dyfyniad Arddull Chicago

Brown, Lester R. Plan B3.0: Mobilizing to Save Civilization. New York: W.W.Norton, 2008.

Dyfyniad MLA

Brown, Lester R. Plan B3.0: Mobilizing to Save Civilization. W.W.Norton, 2008.

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