Dyfyniad APA

Hall, A., & Cannell, G. L. (1979). Aghriculture in Semi-Aid environment. Springer-Verlag.

Dyfyniad Arddull Chicago

Hall, A.E, and G.H. Lawton Cannell. Aghriculture in Semi-Aid Environment. New York: Springer-Verlag, 1979.

Dyfyniad MLA

Hall, A.E, and G.H. Lawton Cannell. Aghriculture in Semi-Aid Environment. Springer-Verlag, 1979.

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