@book{26807,
	author = {Canada. and Cole, Lionel Heber,},
	title = {The gypsum industry of Canada,},
	publisher = {F. A. Acland, printer,},
	year = {1930.},
	address = {Ottawa,},
	note = {At head of title: Canada.  Dept. of Mines.  Mines Branch.}
}