@mastersthesis {32513,
	title = {Genetic variation of trembling aspen in Alberta},
	volume = {Forest Science},
	year = {1980},
	pages = {117},
	address = {University of Alberta},
	keywords = {Populus},
	url = {http://search.proquest.com/docview/303104859},
	author = {Cheliak, William Michael}
}
