@book{22889,
	author = {Tolle, Eckhart and Matarranz, Margarita},
	title = {El poder del ahora :},
	publisher = {Grupo Editorial Norma,},
	year = {2008},
	series = {Vive Mejor},
	address = {Bogotá, Colombia :},
	note = {Titulo original : The Power of Now : A Guide to Spiritual Enlightenment}
}