@book{36340,
	author = {Cao García, Ramón J. and Clark, Charles Tallifero.},
	title = {Principios y métodos estadísticos para comercio y economía /},
	publisher = {South-Western Pub. Co. },
	year = {c1980-82.},
	address = {Cincinnati },
	note = {Incluye índice.}
}