. "No restrictions on access"@en . . "Oral history interview with Stefan Czyzewski"@en . . "5 sound cassettes (74 min.),"@en . . "Katie Davis, on behalf of the United States Holocaust Memorial Museum Oral History Branch, conducted the interview with Stefan Czyzewski on September 14, 1998."@en . "United States Holocaust Memorial Museum"@en . "1998 September 24" . . . "irn506659" . . . . .