@book{2540,
	author = {Sánchez Azcona, Jorge.},
	title = {Familia y sociedad},
	publisher = {Joaquín Mortiz,},
	year = {1980.},
	series = {Cuadernos de Joaquín Mortiz},
	address = {México, D.F. :},
	edition = {3 ed.}
}