@book{190671,
	author = {Thompson, Robert Stephen. and United States},
	title = {Atlas of relations between climatic parameters and distributions of important trees and shrubs in North America},
	publisher = {U.S. Geological Survey},
	year = {2001.},
	series = {U.S. Geological Survey professional paper},
	address = {Denver, CO},
	note = {"First printing: December 2000"--T.p. verso.}
}