@book{18347,
	author = {Friedman, Milton, 1912-2006 and Friedman, Rose, 1910-2009},
	title = {Libertad de elegir},
	publisher = {Ediciones Orbis},
	year = {1983},
	series = {Biblioteca de economía},
	address = {Barcelona},
	note = {Incluye notas y aps.}
}