@Misc{BVMC:225956, author = {Rivas, Ángel de Saavedra, Duque de}, title = {El crisol de la lealtad}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 1999}, year = {1999}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmckk973} }