@book{28676,
	author = {Cummings, John Moss, and McCammon, James William, and British Columbia.},
	title = {Clay and shale deposits of British Columbia,},
	publisher = {Printed by D. McDiarmid, Printer to the Queen,},
	year = {1952.},
	series = {Bulletin,},
	address = {Victoria,},
	note = {At head of title: British Columbia Department of Mines.}
}