@Book{BVMC:292762, author = {Adalberto}, title = {Carta de Adalberto a Rafael Altamira. Avilés, 14 de agosto de 1909}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2012}, year = {2012}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmcqn6t1} }