Dyfyniad APA

Kirkham, M. B. (2005). Principles of soil and plnat water relations. London: Elsevier.

Dyfyniad Arddull Chicago

Kirkham, M. B. Principles of Soil and Plnat Water Relations. London: Elsevier, 2005.

Dyfyniad MLA

Kirkham, M. B. Principles of Soil and Plnat Water Relations. London: Elsevier, 2005.

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