@Book{BVMC:1051042, author = {Castillejo, José}, title = {Carta de J. Castillejo a Rafael Altamira. Madrid, 6 de mayo de 1912}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2020}, year = {2020}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmc1051042} }