@book{148499,
	author = {Beltrán López, Gersón.},
	title = {Geolocalización online :},
	publisher = {Editorial UOC,},
	year = {2016.},
	series = {El profesional de la información},
	address = {Barcelona :},
	note = {Incluye índice.},
	url = {https://elibro.net/ereader/politecnicointernacional/58494}
}