@book{153629,
	author = {O'Callaghan Muñoz, Xavier. and Pedreira Andrade, Antonio.},
	title = {Introducción al derecho y derecho civil patrimonial},
	publisher = {Editorial Centro de Estudios ramón Areces},
	year = {1992.},
	series = {Colección CEURA.},
	address = {Madrid},
	edition = {3a ed.}
}