@book{761,
	author = {Carretero, Mario.},
	title = {Constructivismo y educación /  },
	publisher = {Aique;},
	year = {1993.},
	address = {Buenos Aires: },
	edition = {3a ed.},
	note = {Carretero, M. (1993). Constructivismo y educación. (3a ed.). Buenos Aires : Aique.}
}