Public Law 91-646, January 2, 1971
in Records of the Bureau of Reclamation, 1889 - 2008 (RG115). Case Files on Yangtze Gorge and Three Gorges Dam, China, 1943 - 1996 (NRG-115-05-088), of United States. National Archives and Records Administration. Federal Records (1971), Box 77, Folder 233122-0: World Bank Delegation, 1986 - Canadian Feasibility Study & Panel of Consultants , 14 page(s)