@Book{BVMC:703436, author = {Herrera, Cástulo}, title = {[Carta de Cástulo Herrera a Francisco I. Madero. México (D.F.), 23 de abril de 1911]}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2014}, year = {2014}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmc7m244} }