Johnston, Helen L., Elsie S. Manny, and William G. Yanniello. "Rural Health: Selected Annotated References, January 1953 to June 1960." U.S. Department of Agriculture Economic Research Service Miscellaneous Publication no. 860, 1961 May

Johnston, Helen L., Elsie S. Manny, and William G. Yanniello. "Rural Health: Selected Annotated References, January 1953 to June 1960." U.S. Department of Agriculture Economic Research Service Miscellaneous Publication no. 860, 1961 May, Box: 177, Folder: 4. Julian Samora Papers, 24426265. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/389235 Accessed September 26, 2026.