@Misc{BVMC:239687, author = {Pérez Galdós, Benito}, title = {El abuelo : (novela en cinco jornadas)}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2001}, year = {2001}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmc9k489} }