@book{41224,
	author = {Robert S. Thompson ; Katherine H. Anderson ; Patrick J. Bartlein ; Sharon A. Smith},
	title = {Atlas of Relations Between Climatic Parameters and Distributions of Important Trees and Shrubs in Noth America: Introduction and Conifers},
	publisher = {U.S. Geological Survey},
	year = {2000},
	address = {Virginia}
}