"1961 - 1975" . . . "American prisoners of war in Southeast Asia, 1971 : hearings before the Subcommittee on National Security Policy and Scientific Developments of the Committee on Foreign Affairs, House of Representatives, Ninety-second Congress, first session, March 23, 24, 25, 30, 31, April 1, 6, 20, 1971"@en . . . . . . "American prisoners of war in southeast Asia, 1971 : hearings before the Subcommittee on National Security Policy and Scientific Developments of the Committee on Foreign Affairs, House of Representatives, Ninety-second Congress, first session"@en . . . . . . . . . . "American prisoners of war in Southeast Asia, 1971 : hearings before the Subcommittee on National Security Policy and Scientific Developments of the Committee on Foreign Affairs, House of Representatives, Ninety-second Congress, first session"@en . . . .