@book{67765,
	author = {RIES, Al. and TROUT,Jack,coaut.},
	title = {Las 22 leyes inmutables del marketing: violelas a su propio riesgo .},
	publisher = {Mc Graw Hill.},
	address = {México},
	note = {Contiene: 
Índice de contenido
Introduccion
Advertencia
Índice.}
}