@Book{BVMC:581239, author = {Díaz y Díaz, Adolfo}, title = {Carta de Adolfo Díaz a Rafael Altamira. Habana, 21 de febrero de 1910}, publisher = {Alicante: Biblioteca Virtual Miguel de Cervantes, 2013}, year = {2013}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmcnc7p7} }