@Misc{BVMC:225923, author = {Rivas, Ángel de Saavedra, Duque de}, title = {Tanto vales cuanto tienes}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 1999}, year = {1999}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmczw1d7} }