Paris, 18 October 1948 - Institutional correspondence A letter from Mariano Miguel to José Ballester-Gozalvo
CBS Radio Network, November 24, 1969 - Radio broadcast Interview with Paul Meadlo on his role in the alleged massacre of civilians at Songmy (My Lai)
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