@article {28454,
	title = {Environmental impact of surface coal mining operations in Alberta},
	year = {1971},
	pages = {54},
	institution = {F. F. Slaney \& Company Limited for Environment Conservation Authority},
	address = {Vancouver, B. C. },
	url = {http://www.library.ualberta.ca/permalink/opac/1882945/WEBSERVER}
}
