@Book{BVMC:715907, author = {San Pedro, F. D.}, title = {Carta de F. B. San Pedro a Rafael Altamira. Madrid, 10 de agosto de 1908}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2015}, year = {2015}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmc515v9} }