@Misc{BVMC:279314, author = {Unamuno, Miguel de}, title = {"Prólogo" a José Asunción Silva, "Poesías"}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2010}, year = {2010}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmcj10m4} }