1. Excerpt from Fred Soper's diary Publication: Produced: [4-24 May 1926] Subject(s): ParaguayHookworm Infections Archival Collection: The Fred L. Soper Papers (Profiles in Science)
2. Health and sanitation program: agreement between the United States of America and Paraguay : effected by exchange of notes, signed at Washington, May 18 and 22, 1942 Publication: Washington : United States Government Printing Office, 1945 Subject(s): Public HealthSanitationHealth ExpendituresUnited StatesParaguay
