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Edward F. Knipling, U.S. Department of Agriculture entomologist, enters, under a code number, one of the preparations to be tested in the search for an effective louse killer for the use of our fighting forces

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Citation

Unknown. 1942. “Edward F. Knipling, U.S. Department of Agriculture entomologist, enters, under a code number, one of the preparations to be tested in the search for an effective louse killer for the use of our fighting forces.” Special Collections, USDA National Agricultural Library. Accessed October 13, 2026, https://www.nal.usda.gov/exhibits/speccoll/items/show/12345.