Roxbury, 22 November 1955 - Institutional correspondence Alexander Calder's letter to Willem Sandberg, dated 22 November 1955
Roxbury, 12 January 1956 - Institutional correspondence Alexander Calder's letter to Willem Sandberg, dated 12 January 1956
<em>Invisibility Blues: From Pop to Theory</em>, London and New York: Verso, 1990 - Article “Reading 1968: The Great American Whitewash”