. . . "1 digital file, WAV"@en . "No restrictions on access"@en . . . "No restrictions on use"@en . "irn734640" . "1981 May 20" . . . "John Baum donated his friend Nathan Zepell's oral testimony to the United States Holocaust Memorial Museum in February 2022."@en . . . . "Oral history interview with Nathan Zepell"@en .