Dyfyniad APA
ebrary, Inc, Rosillo Callé, F., & Johnson, F. X. (2010). Food versus fuel: An informed introduction to biofuels. Zed Books.
Dyfyniad Arddull Chicago
ebrary, Inc, Francisco Rosillo Callé, and Francis X. Johnson. Food Versus Fuel: An Informed Introduction to Biofuels. London: Zed Books, 2010.
Dyfyniad MLA
ebrary, Inc, et al. Food Versus Fuel: An Informed Introduction to Biofuels. Zed Books, 2010.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.