@book{20281,
	author = {Schank, Roger. and Maldonado Piña, Norma, traductora.},
	title = {Aprendizaje virtual : },
	publisher = {McGraw-Hill,},
	year = {1997.},
	address = {México, D.F. : },
	edition = {Primera edición.},
	note = {Incluye índice.}
}