@Book{BVMC:704083, author = {Esparza, Enrique L.}, title = {[Carta de Enrique L. Esparza a Francisco I. Madero. El Paso (E.U.A.), 25 de abril de 1911]}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2014}, year = {2014}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmczc9v9} }