1. Letter from H. Gobind Khorana to Francis Crick Creator: Khorana, Har Gobind, 1922-2011 Date: 22 May 1974 Genre: Letters (correspondence)Diagrams
2. Letter from H. Gobind Khorana to Francis Crick Creator: Khorana, Har Gobind, 1922-2011 Date: 12 April 1969 Genre: Letters (correspondence)
3. Letter from Francis Crick to H. Gobind Khorana Creator: Crick, Francis, 1916-2004 Date: 16 April 1969 Genre: Letters (correspondence)