@book{123908,
	author = {Kraft, Viktor},
	title = {El Círculo de Viena},
	publisher = {Taurus},
	year = {c1977.},
	series = {Ensayistas},
	address = {Madrid},
	edition = {2a. ed.},
	note = {Translation of: Der Wiener Kreis, der Ursprung des Neopositivismus.}
}