@Book{BVMC:292772, author = {Guichard, Emilio B.}, title = {Tarjeta de Emilio B. Guichard a Rafael Altamira. Sucre, 21 de agosto de 1909}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2012}, year = {2012}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmcjw919} }