@book{15561,
	author = {Frassineti De Gallo, Martha and Salatino, Gabriela},
	title = {Ejercicios de semiótica, lógica y epistemología.},
	publisher = {A-Z editora,},
	year = {2006.},
	series = {Serie Plata a-Z},
	address = {Buenos Aires :}
}