Paris, 1937 - Photograph Views of the Spanish Pavilion at the Paris International Exhibition of Art and Technology in Modern Life
Old Westbury, New York, 4 May 1977 - Institutional correspondence Emilia Doyaga's letter to Nelson Rockefeller
Brussels, 14 May 1956 - Institutional correspondence A letter from the Spanish ambassador in Belgium to Alberto Martín-Artajo Álvarez