@article {27701,
	title = {A systematic and genecological study of Picea glauca and P. engelmannii, using paper chromatograms of needle extracts},
	volume = {46},
	year = {1968},
	pages = {649-687},
	publisher = {Canadian Journal of Botany},
	url = {http://article.pubs.nrc-cnrc.gc.ca/RPAS/RPViewDoc?_handler_=HandleInitialGet\&calyLang=eng\&journal=cjb\&volume=46\&articleFile=b68-093.pdf},
	author = {La Roi, George H. and Dugle, Janet R.}
}
