@Book{BVMC:222232, author = {Isla, José Francisco de}, title = {[Cartes al Pare Matías de Marquina sobre l'obra "Historia de Fray Gerundio"]}, publisher = {Alacant : Biblioteca Virtual Miguel de Cervantes, 2003}, year = {2003}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmcff3p0} }