@book{17186,
	author = {Farnham - Diggory, Silvia and Hahn Villagrán, Elizabeth},
	title = {Dificultades de Aprendizaje /},
	publisher = {Ediciones MORATA,},
	year = {1983.},
	series = {Bruner},
	address = {Madrid :},
	edition = {2.}
}