@book{1206,
	author = {Grossnickle, Steven C. and National Research Council Canada.},
	title = {Ecophysiology of northern spruce species},
	publisher = {NRC Research Press,},
	year = {2000.},
	address = {Ottawa :},
	note = {Issued by the National Research Council Canada.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=5001464}
}