References and Bibliography
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http://www.conservation.state.mo.us/nathis/plantpage/flora/motrees/
Missouri Trees, by J.E. Wylie and Ramon Gass, Published by Missouri Department of Conservation,
Jefferson City, 1993, Copyright 1980 Missouri Conservation Commission
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http://www.unb.ca/forestry/species/species-fs.html
UNB Forestry and Environmental Management, Images of Dendrological and Developmental Facets of Tree
Species
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http://www.exnet.iastate.edu/pages/tree/
Iowa State University Extension, Extension Forestry, Identification of Native Trees of Iowa, An
Interactive Key
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http://www.for.gov.bc.ca/pab/publctns/treebook/
Forest Service of British Columbia, Tree Book, Learning to recognize Trees of British Columbia
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http://www.gypsymoth.ento.vt.edu/vagm/Treeimages/treeguide.html
Guide to the Trees and Shrubs of Virginia, Kenneth J. Stein and F. William Ravlin, Department of
Entomology, VPI & SU, Blacksburg, VA 24061
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http://www.maes.msu.edu/ressta/kelloggforest/
Michigan State University's Kellogg Experimental Forest, Tree Identification Cards
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http://www.dnr.state.oh.us/forestry/Education/ohiotrees/treesindex.htm
Trees of Ohio, Ohio
Department of Natural Resources Division of Forestry

Identify a Tree