Não informado. (1956). Experimental Husbandry. Ministry of Agriculture, Fisheries and Food.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Experimental Husbandry. London: Ministry of Agriculture, Fisheries and Food, 1956.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Experimental Husbandry. Ministry of Agriculture, Fisheries and Food, 1956.
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