@article {32505,
	title = {Foliar sulphate : a biological monitoring tool to measure sulphur accumulation in the forest ecosystem : an interim report submitted to the Whitecourt Environmental Study Group},
	volume = {1980-03},
	year = {1980},
	institution = {University of Calgary, Kananaskis Centre for Environmental research},
	author = {Legge, A. H.}
}
