@book{20825,
	author = {Orihuela, José Luis and Piscitelli, Alejandro, prólogo},
	title = {Mundo Twitter :},
	publisher = {Grupo Planeta, },
	year = {2013.},
	address = {Barcelona, España : },
	edition = {Cuarta edición},
	note = { 	Contiene índice. }
}