"United States" . . . . "Soviet Union" . . "Threshold Test Ban and Peaceful Nuclear Explosion treaties with the U.S.S.R. : hearings before the Committee on Foreign Relations, United States Senate, One Hundred First Congress, second session, July 17, 31, and September 13, 1990"@en . . . . . "Threshold Test Ban and Peaceful Nuclear Explosion treaties with the U.S.S.R hearings before the Committee on Foreign Relations, United States Senate, One Hundred First Congress, second session, July 17, 31, and September 13, 1990"@en . "Treaties"@en . . . . . . . . . . . "Threshold Test Ban and Peaceful Nuclear Explosion treaties with the U.S.S.R. hearings before the Committee on Foreign Relations, United States Senate, One Hundred First Congress, second session, July 17, 31, and September 13, 1990"@en . . . . .