Παραπομπή σε μορφή APA (7η εκδ.)

Olvång, H. (1987). Investigations of resistance to fungicides in some plant pathogen-fungicide systems in Sweden. Swedish University of Agricultural Sciences, Dept. of Plant and Forest Protection.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Olvång, Hans. Investigations of Resistance to Fungicides in Some Plant Pathogen-fungicide Systems in Sweden. Uppsala: Swedish University of Agricultural Sciences, Dept. of Plant and Forest Protection, 1987.

Παραπομπή σε μορφή MLA (8th εκδ.)

Olvång, Hans. Investigations of Resistance to Fungicides in Some Plant Pathogen-fungicide Systems in Sweden. Swedish University of Agricultural Sciences, Dept. of Plant and Forest Protection, 1987.