1. Letter from Dudley A. Reekie to Fred L. Soper Publication: Produced: 30 August 1943 Subject(s): Financial SupportCooperative BehaviorTyphus, Epidemic Louse-Borne Archival Collection: The Fred L. Soper Papers (Profiles in Science)
2. Letter from Raymond L. Latarjet to Joshua Lederberg Publication: Produced: 14 August 1946 Subject(s): Cooperative Behavior Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
3. Soper's remarks espousing early regional organization of the World Health Organization Publication: The World Health Organization, 1948 Subject(s): World Health OrganizationInternational CooperationPan American Health OrganizationCooperative Behavior Archival Collection: The Fred L. Soper Papers (Profiles in Science)
4. Team work Publication: [Vellore, India : Audio Visual Unit, C.M.C. Hospital, 19--] Subject(s): Cooperative BehaviorEquidae