"El secreto de la vida o lo que es vivir" Box 6, Folder 32 Ramón Gómez de la Serna Papers, 1906-1967, SC.1967.04, Special Collections Department, University of Pittsburgh "El secreto de la vida o lo que es vivir" Box 6, Folder 32 Ramón Gómez de la Serna Papers, 1906-1967, SC.1967.04, Special Collections Department, University of Pittsburgh