Não informado. (2002). Sheep & goat research journal. National Institute for Animal Agriculture.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Sheep & Goat Research Journal. Englewood, Colo: National Institute for Animal Agriculture, 2002.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Sheep & Goat Research Journal. National Institute for Animal Agriculture, 2002.
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