Dyfyniad APA

Evans,L T. (1993). Crop evolution ,adaptation and yield. Cambridge University Press.

Dyfyniad Arddull Chicago

Evans,L T. Crop Evolution ,adaptation and Yield. New York: Cambridge University Press, 1993.

Dyfyniad MLA

Evans,L T. Crop Evolution ,adaptation and Yield. Cambridge University Press, 1993.

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