@article {30611,
	title = {The Late Quaternary vegetational history of the western interior of Canada},
	volume = {54},
	year = {1976},
	pages = {1793-1818},
	publisher = {Canadian Journal of Botany},
	url = {http://article.pubs.nrc-cnrc.gc.ca/RPAS/RPViewDoc?_handler_=HandleInitialGet\&calyLang=eng\&journal=cjb\&volume=54\&articleFile=b76-194.pdf},
	author = {Ritchie, J.C.}
}
