@book{28503,
	author = {Ward, S. H. and Clark, Karl A.},
	title = {Determination of the viscosities and specific gravities of the oils in samples of Athabaska bituminous sand,},
	publisher = {A. Shnitka, King's printer,},
	year = {1950.},
	series = {Research Council of Alberta. Report},
	address = {Edmonton,}
}