American Elm : References
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Elm Watch (1999). American Elm Restoration. Retrieved from http://www.elmwatch.org/restoration_program.html
GammaBlog (2013, July 26). Giant American Elm Cut Down. Retrieved from http://gammablog.com/tag/elms/
Harris, M. K. (2007, May 8). American Elm Makes Slow Return. USA Today. Retrieved from http://usatoday30.usatoday.com/news/nation/environment/2007-05-07-american-elm_N.htm
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Jensen, E., Niemiera, A., Peterson, J., Seiler, J. (2012). American elm. Retrieved from http://dendro.cnre.vt.edu/dendrology/syllabus/factsheet.cfm?ID=41
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Keynes, G. (1956). The Letters of William Blake. Retrieved from http://archive.org/details/lettersofwilliam002199mbp
Ohio Department of Natural Resources (2013). American Elm (Ulmus americana). Retrieved from http://ohiodnr.com/forestry/trees/elm_am/tabid/5365/Default.aspx
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(2013). Imaginiation. Retrieved from http://www.allthingswilliam.com/imagination.html