@book{77180,
	author = {Keay, Frederick. and Wensley, G. L.},
	title = {Marketing y técnicas de ventas},
	publisher = {Ibérico Europea de Ediciones},
	year = {1971.},
	series = {Enciclopedia de marketing ; 6},
	address = {Madrid},
	note = {Translation of Marketing through measurement.}
}