Cranstone, B. (1987). Why are pigs (and some other animals) not milked? Anthropological Society of Oxford.
Lua i Stíl Chicago (17ú heag.)Cranstone, BAL. Why Are Pigs (and Some Other Animals) Not Milked? Anthropological Society of Oxford, 1987.
Lua MLA (9ú heag.)Cranstone, BAL. Why Are Pigs (and Some Other Animals) Not Milked? Anthropological Society of Oxford, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.