@book{50108,
	author = {Vega Arias, Javier. and e-libro, Corp.},
	title = {Grúa torre},
	publisher = {Monografías,},
	year = {[2007]},
	address = {[Buenos Aires] :},
	url = {https://elibro.net/ereader/politecnicointernacional/34446}
}