@Book{BVMC:709662, author = {Madero, Francisco I.}, title = {[Carta de Francisco I. Madero a Toribio Esquivel Obregón y Oscar J. Braniff. Ciudad Juárez (Chihuahua), 8 de mayo de 1911]}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2015}, year = {2015}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmc9p4x3} }