@Misc{BVMC:233057, author = {Azcárate, Gumersindo de}, title = {Los Estados Unidos: conferencia}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes ; Madrid : Biblioteca Nacional, 2006}, year = {2006}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmcgt5j2} }