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Harrison, Colin James Oliver. Robbins, Mark B., 1954- Greensmith, Alan.
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1993
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Harrison, Hal H. National Audubon Society. National Wildlife Federation. Roger Tory Peterson Institute.
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1975
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Godfrey, W. Earl. MacDonald, S. D. Crosby, John A. National Museum of Natural Sciences (Canada)
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1986
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Roth, Sally.
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2007
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Sibley, David, 1961-
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2000
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Peterson, Roger Tory, 1908-1996.
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2008
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Latimer, Jonathan P. Nolting, Karen Stray. Peterson, Roger Tory, 1908-1996.
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1999
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Peterson, Roger Tory, 1908-1996.
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1980
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Warkentin, Ian George, 1961- Newton, Sandy. Peterson, Roger Tory, 1908-1996.
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2009
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Gooders, John. Boyer, Trevor.
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1986
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Gooders, John. Boyer, Trevor.
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1986
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Sibley, David, 1961-
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2003
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2003
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