Paris, 18 October 1948 - Institutional correspondence A letter from Mariano Miguel to José Ballester-Gozalvo
Communiqué, Boston, October 4, 2012 - Press release Museum of Fine Arts, Boston, Helps Commemorate the 50th Anniversary of the Cuban Missile Crisis with the Loan of a Picasso to the JFK Library and Museum
Mougins, 10 December 1970 - Personal correspondence A telegram Mariano Miguel, Picasso’s secretary, sent to Raimon Noguera to request the cancellation of the opening ceremony for the expansion of Museo Picasso