1. Letter from Joshua Lederberg to the Citrus Experiment Station Publication: Produced: 11 November 1953 Subject(s): Insecticide ResistanceDrug Resistance, Microbial Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
2. Letter from Joshua Lederberg to Gail Cassell Publication: Produced: 30 April 1999 Subject(s): PlasmidsDrug Resistance, MicrobialAnti-Bacterial Agents Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
3. Letter from Joshua Lederberg to Gardner Middlebrook Publication: Produced: 7 April 1954 Subject(s): Drug Resistance, MicrobialMutationMycobacterium Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
4. Letter from Joshua Lederberg to Gardner Middlebrook Publication: Produced: 11 December 1956 Subject(s): Drug Resistance, MicrobialMutation Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
5. Letter from Joshua Lederberg to C. Phillip Miller Publication: Produced: 5 December 1951 Subject(s): Escherichia coliMutationDrug Resistance, Microbial Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
6. Letter from Joshua Lederberg to Jacques Monod Publication: Produced: 6 October 1948 Subject(s): Genetics, MicrobialRecombination, GeneticDrug Resistance, Microbial Archival Collection: The Joshua Lederberg Papers (Profiles in Science)