Cranstone, B. (1987). Why are pigs (and some other animals) not milked? Anthropological Society of Oxford.
Citazione stile Chigago Style (17a edizione)Cranstone, BAL. Why Are Pigs (and Some Other Animals) Not Milked? Anthropological Society of Oxford, 1987.
Citatione MLA (9a ed.)Cranstone, BAL. Why Are Pigs (and Some Other Animals) Not Milked? Anthropological Society of Oxford, 1987.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.