Central Intelligence Agency (CIA). "Lessons Used in the Indoctrination of American
Prisoners of War." September 14, 1969.
Central Intelligence Agency (CIA). "Prisoner of War Questionnaire Used by Military
Proselyting Section, Front 7, Quang Tri Province." 1969.
Central Intelligence Agency (CIA). "Viet Cong Request for Permission to Release
American Negro Prisoners in Phnom Penh for the Sake of International Publicity."
November 9, 1967.
Howes, Craig. Voices of the Vietnam POWs: Witnesses to Their Fight.
New York: Oxford University Press, 1993.
Kifner, John. "Court Backs Plan To Free P.O.W.'s."
New York Times, July 16, 1969, p. 7.