The Language of Color, Museo de Arte Moderno, Bogotá, Colombia, February 24 – March 30, 1975; Museu de Arte de São Paulo, São Paulo, Brazil, April 18 – May 18, 1975; Museu de Arte Moderna, Rio de Janeiro, Brazil, June 12 – July 20, 1975; Museo de Bellas Artes, Caracas, Venezuela, August 3 – September 14,1975; Instituto Nacional de Bellas Artes, Mexico City, Mexico, October 2