16 September 1960 - Internal museum documents A letter from Betsy Jones to Alfred H. Barr Jr., dated 16 September 1960
Madrid, 1 September 1977 - Institutional correspondence A letter from Jesús Madalena to José Mario Armero
<em>Marxist Perspectives</em>, New York, vol. 1, no. 4 (winter, 1978): 28–51 - Article “The Museum of Modern Art as Late Capitalist Ritual: An Iconographic Analysis”
New York, 6 August 1973 - Institutional correspondence A letter from Betsy Jones to Daniel-Henry Kahnweiler
New York, 18 September 1964 - Institutional correspondence A letter from Betsy Jones to Alfred H. Barr Jr., dated 18 September 1964