. "Nuclear non-proliferation and U.S. national security : hearings before the Committee on Governmental Affairs, United States Senate, One hundredth Congress, first session, February 24, 25, and March 5, 1987"@en . . "Nuclear non-proliferation and US national security"@en . . "Nuclear non-proliferation and U.S. national security : hearings before the Committee on Governmental Affairs, United States Senate, one hundredth Congress, first session, February 24, 25, and March 5, 1987"@en . . . . "Nuclear non-proliferation and U.S. national security hearings before the Committee on Governmental Affairs, United States Senate, One hundredth Congress, first session, February 24, 25, and March 5, 1987"@en . . . . . . . . . . .