@book{37664,
	author = {Sartre, Jean Paul. and Valmar, Juan.},
	title = {El ser y la nada /},
	publisher = {Ediciones Altaya,},
	year = {1993.},
	series = {Grandes obras del pensamiento ;},
	address = {Barcelona :},
	note = {Titulo original: L tre et le neant.}
}