Dyfyniad APA

Johansson, L. (2000). Resistance in Salix against willow leaf rust caused by Melampsora epitea. Swedish University of Agricultural Sciences.

Dyfyniad Arddull Chicago

Johansson, Leif. Resistance in Salix Against Willow Leaf Rust Caused by Melampsora Epitea. Uppsala: Swedish University of Agricultural Sciences, 2000.

Dyfyniad MLA

Johansson, Leif. Resistance in Salix Against Willow Leaf Rust Caused by Melampsora Epitea. Swedish University of Agricultural Sciences, 2000.

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