Não informado. (1956). Experimental Husbandry. Ministry of Agriculture, Fisheries and Food.
Chicago-referens (17:e uppl.)Não informado. Experimental Husbandry. London: Ministry of Agriculture, Fisheries and Food, 1956.
MLA-referens (8:e uppl.)Não informado. Experimental Husbandry. Ministry of Agriculture, Fisheries and Food, 1956.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.