• 21
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  • 22
    Windows to the Wild special production ; host, Villem Lange ; producer, Phil Vaugh ; videographer, Steve Giordani.
    [Place of publication not identified] : PBS Distribution, [2015]
    DVD
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  • 23
    a production of Thirteen and National Geographic Television in association with WNET.org ; produced, written and directed by Ron Bowman.
    Chicago, IL : Distributed by Questar, c2010.
    DVD
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  • 24
    Wildlife Films and Thirteen Productions LLC in co-production with Terra Mater Factual Studios ; author, Dereck Joubert ; produced by Beverly Joubert and Dereck Joubert.
    Arlington, VA : PBS Distribution, [2015]
    DVD
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  • 25
    [Toronto, Ont.] : Canadian Broadcasting Corp., 2009 : CBC Learning [distributor], [2010] [Letterboxed]
    DVD
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