@article {29803,
	title = {Taxonomic and ecologic relationships between Picea glauca and Picea engelmannii},
	volume = {52},
	year = {1974},
	pages = {1545-1560},
	publisher = {Canadian Journal of Botany},
	url = {http://article.pubs.nrc-cnrc.gc.ca/RPAS/RPViewDoc?_handler_=HandleInitialGet\&calyLang=eng\&journal=cjb\&volume=52\&articleFile=b74-203.pdf},
	author = {Daubenmire, R.}
}
