Não informado. (1972). Feed industry review. Central Retail Feed Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Feed Industry Review. Milwaukee, Wis: Central Retail Feed Association, 1972.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Feed Industry Review. Central Retail Feed Association, 1972.
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