. "No restrictions on access"@en . . "1989 December 23" . . . "1 sound cassette,"@en . "Australian Institute for Holocaust and Genocide Studies"@en . . . "irn43036" . . "The Australian Institute of Holocaust Studies conducted the interview with Richard Roberts on December 23, 1989 for the Twelfth Hour Project. The United States Holocaust Memorial Museum received a copy of the interview in April 2006 from the State Library of New South Wales where the collection is housed."@en . . . . "Oral history interview with Richard Roberts"@en .