1. Letter from Maxine Singer to Faith N. Brenneman Publication: Produced: 6 December 1960 Subject(s): Protein BiosynthesisPolyribonucleotide Nucleotidyltransferase Archival Collection: The Maxine Singer Papers (Profiles in Science)
2. Letter from Maxine Singer to Marianne Grunberg-Manago Publication: Produced: 16 February 1965 Subject(s): Polyribonucleotide Nucleotidyltransferase Archival Collection: The Maxine Singer Papers (Profiles in Science)
3. Letter from Severo Ochoa to Maxine Singer Publication: Produced: 11 November 1957 Subject(s): PolynucleotidesPolyribonucleotide Nucleotidyltransferase Archival Collection: The Maxine Singer Papers (Profiles in Science)
4. Letter from Severo Ochoa to Maxine Singer Publication: Produced: 24 May 1958 Subject(s): PolynucleotidesPolyribonucleotide Nucleotidyltransferase Archival Collection: The Maxine Singer Papers (Profiles in Science)
5. Letter from Maxine Singer to Paul Berg Publication: Produced: 6 November 1958 Subject(s): Polyribonucleotide Nucleotidyltransferase Archival Collection: The Maxine Singer Papers (Profiles in Science)
