Citazione Stile APA (7a Edizione)
Stefferud, A. Animal diseases. The united states departament of de agriculture (1a.ed.). The united states departament of agriculture. Washintong D.C.
Citazione stile Chigago Style (17a edizione)
Stefferud, Alfred. Animal Diseases. The United States Departament of De Agriculture. 1a.ed. The united states departament of agriculture. Washintong D.C.
Citatione MLA (9a ed.)
Stefferud, Alfred. Animal Diseases. The United States Departament of De Agriculture. 1a.ed. The united states departament of agriculture. Washintong D.C.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.