@Book{BVMC:718517, author = {Altamira, Rafael}, title = {Carta de Rafael Altamira al Conde de la Mortera. Madrid, 6 de abril de 1924}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2015}, year = {2015}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmc3j598} }