Ruwet, J. C. (1973). Introduction to ethology: The biology of behavior. International Universities Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRuwet, Jean Claude. Introduction to Ethology: The Biology of Behavior. New York: International Universities Press, 1973.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRuwet, Jean Claude. Introduction to Ethology: The Biology of Behavior. International Universities Press, 1973.
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