Pamphlet by Agricultural Research Service, United States Department of Agriculture. 1963 January. "Screwworm Stronghold Attacked." Edward F. Knipling Papers, Screwworm Eradication Collection, Special Collections, National Agricultural Library.
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Chapter 14: Public Information Pamphlet by Agricultural Research Service, United States Department of Agriculture. 1963 January. "Screwworm Stronghold Attacked." Edward F. Knipling Papers, Screwworm Eradication Collection, Special Collections, National Agricultural Library. |
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