http://pac.provo.lib.ut.us/ipac20/ipac.jsp?index=ISBNEX&term=9780805078299#focus

http://treeblog.hansels.net/2011/05/celebritrees.html

http://www.dailycognition.com/index.php/2009/12/27/10-most-extraordinary-trees-in-the-world.html

 

 

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