1. E-Mail from Joshua Lederberg to William J. McGuire Publication: Produced: 18 August 1997 Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
2. E-Mail from Joshua Lederberg to William J. McGuire Publication: Produced: 22 August 1997 Archival Collection: The Joshua Lederberg Papers (Profiles in Science)