@Book{BVMC:1050652, author = {Castillejo, José}, title = {Carta de José Castillejo a Rafael Altamira. Madrid, 23 de enero de 1912}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2020}, year = {2020}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmc1050652} }