Tohutoro APA (7th ed.)
Carlson, D. (2007). Roger Tory Peterson: A biography. University of Texas Press.
Tohutoru Kātū Chicago (17th ed.)
Carlson, Douglas. Roger Tory Peterson: A Biography. Austin: University of Texas Press, 2007.
Tohutoro MLA (9th ed.)
Carlson, Douglas. Roger Tory Peterson: A Biography. University of Texas Press, 2007.
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