@book{27673,
	author = { International Geochemical Exploration Symposium and Boyle, R. W. and The Society of Economic Geologists},
	title = {Geochemical Exploration : Proceedings, 3rd International Geochemical Exploration Symposium, Toronto, April 16 - 18, 1970 /},
	publisher = {The Canadian Institut Of Mining And Metallurgy ,},
	year = {1971},
	address = {Canada :}
}