@book{2302,
	author = {Gómez Pérez, Rafael},
	title = {Introducción a la ética social /  },
	publisher = {Rialp;},
	year = {1990.},
	address = {Madrid:},
	edition = {4a ed.},
	note = {Gómez Pérez, R. (1990). Introducción a la ética social. (4a ed.). Madrid : Rialp.}
}