1. Observations from Lederberg during his presence at the joint U.S.-U.S.S.R. CISAC meeting in Moscow in June 1985 Publication: Produced: 12 June 1985 Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
2. Observations from Lederberg during his presence at the joint U.S.-U.S.S.R. CISAC meeting in Moscow in October 1986 Publication: Produced: 12 October 1986 Archival Collection: The Joshua Lederberg Papers (Profiles in Science)