@Book{BVMC:715845, title = {Tarjeta postal de Arturo a Rafael Altamira. Gmunden (Austria), 22 de junio de 1908}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2015}, year = {2015}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmck66c9} }