Dyfyniad APA

(1993). Durability of disease resistance. The Netherland: Kluwer Academic Publishers.

Dyfyniad Arddull Chicago

Durability of Disease Resistance. The Netherland: Kluwer Academic Publishers, 1993.

Dyfyniad MLA

Durability of Disease Resistance. The Netherland: Kluwer Academic Publishers, 1993.

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