Dyfyniad APA

Lester r Brown. (1975). By bread alone. Oxford.

Dyfyniad Arddull Chicago

Lester r Brown. By Bread Alone. Oxford, 1975.

Dyfyniad MLA

Lester r Brown. By Bread Alone. Oxford, 1975.

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