Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (8th εκδ.)

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