Não informado. (1956). Experimental Husbandry. Ministry of Agriculture, Fisheries and Food.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Experimental Husbandry. London: Ministry of Agriculture, Fisheries and Food, 1956.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Experimental Husbandry. Ministry of Agriculture, Fisheries and Food, 1956.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.