1. Letter from Francis Crick to Aaron Klug Publication: Produced: 30 June 1977 Subject(s): DNANucleosomesCrystallography, X-Ray Archival Collection: The Francis Crick Papers (Profiles in Science)
2. Letter from Francis Crick to Aaron Klug Publication: Produced: 2 November 1976 Subject(s): DNAChromatinCrystallography, X-Ray Archival Collection: The Francis Crick Papers (Profiles in Science)