APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (8:e uppl.)

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