@Book{BVMC:703311, author = {Ponce, Demetrio}, title = {[Carta de Demetrio Ponce a Raúl Madero. Casas Grandes (Chihuahua), 12 de abril de 1911]}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2014}, year = {2014}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmc8s6k4} }