@article {27631,
	title = {Review of silvicultural research : white spruce and trembling aspen cover types, mixedwood forest section, boreal forest region, Alberta-Saskatchewan-Manitoba},
	volume = {No. 1156},
	year = {1967},
	pages = {189},
	institution = {Forestry Branch},
	author = {Jarvis, J. M.}
}
