Paris, 30 January 1964 - Institutional correspondence A letter from the Committee of the exhibition España Libre (Free Spain) to Pablo Picasso
Paris, 1 March 1958 - Personal correspondence Roland Penrose's letter to Pablo Picasso, dated 1 March 1958
Paris, 25 August 1958 - Personal correspondence Roland Penrose's letter to Pablo Picasso, dated 25 August 1958
Paris, 27 February 1958 - Institutional correspondence Daniel-Henry Kahnweiler's letter to Alfred H. Barr Jr., dated 27 February 1958
New York, 18 April 1958 - Institutional correspondence A telegram from Alfred H. Barr Jr. to Pablo Picasso, dated 18 April 1958
ca. 1958 - Internal institutional documents Request sheet for the replica Guernica tapestry, to be included in the exhibition La influencia del cubismo en el diseño de tapices (The Influence of Cubism in Tapestry Designs), in Arras
London, 20 February 1964 - Personal correspondence Roland Penrose's letter to Pablo Picasso, dated 20 February 1964 (2)
20 February 1964 - Personal correspondence Roland Penrose's letter to Pablo Picasso, dated 20 February 1964
New York, 27 May 1964 - Photograph View of the exhibition Painting and Sculpture from the Museum Collection
Photograph View of the exhibition Painting and Sculpture from the Museum Collection, from the series Art in a Changing World: 1884–1964
18 January 1964 - Newspapers Nelson Rockefeller and Aline Saarinen in front of the replica Guernica tapestry
Philadelphia, 1958 - Exhibition catalogue Catalogue for the exhibition Picasso: 75th Anniversary at the Philadelphia Museum of Art
ca. 1960–1964 - Newspapers Press cutting with a photograph of the replica Guernica tapestry and Nelson Rockefeller, along with a brief text on his collection
Hans-Ulrich Obrist (ed.), <em>Leon Golub: Do Paintings Bite? Selected Texts 1948–1996</em>, Ostfildern: Hatje Cantz, 1997, 184–191 - Article “Guernica, the Apocalypse of Saint-Sever”