@book{41242,
	author = {Pereyra, Mario and Mussi Carlos},
	title = {¡Sea feliz! :},
	publisher = {Universidad de Montemorelos,},
	year = {2005},
	address = {México :},
	note = {Incluye índice},
	url = {http://biblioteca.unac.edu.co/portadas/51005.jpg}
}