Harris, Richard W. (1983). ARBORICULTURE: Care of Trees, Shrubs, and Vines in the Landscape. Englewood Cliffs, New Jersey 07632: Prentice-Hall, Inc. pp. 2–3. ISBN0-13-043935-5.CS1 maint: location (link)
"arboriculture". The American Heritage Dictionary of the English Language, Fourth Edition Online. http://www.bartleby.com/61/4/A0400400.html. Houghton Mifflin Company. 2000. |access-date= requires |url= (help)
