Não informado. (2001). Journal of Applied Animal Welfare Science. Lawrence Erlbaum Associates.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Journal of Applied Animal Welfare Science. Mahwah, NJ: Lawrence Erlbaum Associates, 2001.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Journal of Applied Animal Welfare Science. Lawrence Erlbaum Associates, 2001.
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