@book{95915,
	author = {Piaget, Jean,},
	title = {La enseñanza de las matemáticas},
	publisher = {Aguilar},
	year = {1968.},
	series = {Coleccion psicología y educacion},
	address = {Madrid},
	edition = {3. ed.},
	note = {Translation of: L'Enseignement des mathématiques.}
}