@book{51422,
	author = {Young, Michael Dunlop and Willmott, Peter},
	title = {La familia simétrica},
	publisher = {Editorial Tecnos},
	year = {1975.},
	series = {Colección de Ciencias Sociales : Serie de Sociología},
	address = {Madrid},
	note = {Translation of : The symmetrical family.}
}