@book{12237,
	author = {Ponterio Vitale, Sergio. and Molina y Vedia, Eduardo Lucio,},
	title = {Metodología en el turismo /},
	publisher = {Trillas },
	year = {c1991.},
	series = {Trillas turismo.},
	address = {México },
	note = {Incluye índice.}
}