@book{54928,
	author = {Carballo Penela, Adolfo. and e-libro, Corp.},
	title = {Ecoetiquetado de bienes y servicios para un desarrollo sostenible},
	publisher = {AENOR,},
	year = {2010.},
	address = {Madrid :},
	url = {https://elibro.net/ereader/politecnicointernacional/53567}
}