Flushing, New York, 23 May 1939 - Institutional correspondence Simon Guggenheim's and Dana C. Backus's form letter to ask for donations
August-September 1990 - Institutional correspondence Correspondence on an exhibition project in Hiroshima
<em>Invisibility Blues: From Pop to Theory</em>, London and New York: Verso, 1990 - Article “Reading 1968: The Great American Whitewash”