@article {32853,
	title = {Acid rain on northern lakes : background studies in Saskatchewan },
	volume = {28},
	year = {1981},
	note = {data from 1938 to 1979 for 600 Saskatchewan water bodies},
	pages = {26-42},
	publisher = {The Musk-Ox},
	author = {Liaw, W. K. and Atton, F. M.}
}
