Jensen, P. (1983). Confinement and continuous noise as environmental factors affecting communication in the domestic pig. Swedish University of Agricultural Sciences, Faculty of Veterinary Medicine, Dept. of Animal Hygiene.
Chicago-referens (17:e uppl.)Jensen, Per. Confinement and Continuous Noise as Environmental Factors Affecting Communication in the Domestic Pig. Skara: Swedish University of Agricultural Sciences, Faculty of Veterinary Medicine, Dept. of Animal Hygiene, 1983.
MLA-referens (8:e uppl.)Jensen, Per. Confinement and Continuous Noise as Environmental Factors Affecting Communication in the Domestic Pig. Swedish University of Agricultural Sciences, Faculty of Veterinary Medicine, Dept. of Animal Hygiene, 1983.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.