@book{87167,
	author = {Carnap, Rudolf, and Mora, Charles de.,},
	title = {Fundamentos de lógica y matemáticas /},
	publisher = {Taller de Ediciones Josefina Betancor,},
	year = {1975.},
	address = {Madrid :},
	note = {Traducción de: Foundations of logic and mathematics}
}