@book{49952,
	author = {Galcerá, David},
	title = {¿Hay alguien ahí? :},
	publisher = {Editorial Clie,},
	year = {2006},
	series = {Pensamiento cristiano},
	address = {España :},
	note = {Incluye índice},
	url = {http://biblioteca.unac.edu.co/portadas/52325.jpg}
}