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 Aaron Klug to Francis Crick Publication: Produced: 31 May 1977 Subject(s): DNANucleosomesCrystallography, X-Ray Archival Collection: The Francis Crick Papers (Profiles in Science)
3. Letter from Francis Crick to Aaron Klug [letter 1] Publication: Produced: 27 April 1977 Subject(s): DNANucleosomesCrystallography, X-Ray Archival Collection: The Francis Crick Papers (Profiles in Science)
4. Letter from Aaron Klug to Francis Crick Publication: Produced: 6 April 1977 Subject(s): DNANucleosomesCrystallography, X-Ray Archival Collection: The Francis Crick Papers (Profiles in Science)