@book{47693,
	author = {Sordo Calvo, Unai, and Estrada, Bruno,},
	title = {¿Un futuro sin sindicatos? /},
	publisher = {Los libros de la Catarata,},
	year = {2019.},
	address = {Madrid :},
	url = {https://elibro.net/ereader/politecnicointernacional/235169}
}