Mayo Newsletter, August 11, 1970, Vol. 1, No. 1 (2 cop.), Vol. 1, No. 2, Vol. 1, No. 4, Vol. 1, No. 5, Vol. 1, No. 6, Vol. 1, No. 7, April 8, 1970, January 29, 1971, April 22, 1971, August 28, 1970, September 4, 1970, May 6, 1971 (2 cop.), January 1972, undated

Mayo Newsletter, August 11, 1970, Vol. 1, No. 1 (2 cop.), Vol. 1, No. 2, Vol. 1, No. 4, Vol. 1, No. 5, Vol. 1, No. 6, Vol. 1, No. 7, April 8, 1970, January 29, 1971, April 22, 1971, August 28, 1970, September 4, 1970, May 6, 1971 (2 cop.), January 1972, undated, Box: 126. José Angel Gutiérrez Papers, 24158659. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/456150 Accessed September 27, 2026.