Pin by Agricultural Research Service, United States Department of Agriculture. 1977. "Mission '77 Stamp Out Screwworms." Screwworm Eradication Records, Screwworm Eradication Collection, Special Collections, National Agricultural Library.
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Chapter 14: Public Information Pin by Agricultural Research Service, United States Department of Agriculture. 1977. "Mission '77 Stamp Out Screwworms." Screwworm Eradication Records, Screwworm Eradication Collection, Special Collections, National Agricultural Library. |
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