Source et copyright
Source: Lyndon B. Johnson: Waist length, seated, 1961 - 1986 [online]. General Services Administration. National Archives and Records Service. Office of the National Archives. Black and White.
U.S. National Archives and Records Administration. Series: Photographic Records Made By The National Archives; Record Group 64: Records of the National Archives and Records Administration; ARC Identifier: 518140.
Available at: http://www.archives.gov.
Copyright: (c) NARA
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