Garretson, M. S. (1938). The American bison: The story of its extermination as a wild species and its restoration under federal protection. New York zoological society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGarretson, Martin S. The American Bison: The Story of Its Extermination as a Wild Species and Its Restoration Under Federal Protection. New York: New York zoological society, 1938.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGarretson, Martin S. The American Bison: The Story of Its Extermination as a Wild Species and Its Restoration Under Federal Protection. New York zoological society, 1938.
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