Dyfyniad APA

(2004). Weed biology and mangement. London: Kluwer Academic Publishers.

Dyfyniad Arddull Chicago

Weed Biology and Mangement. London: Kluwer Academic Publishers, 2004.

Dyfyniad MLA

Weed Biology and Mangement. London: Kluwer Academic Publishers, 2004.

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