A third digest of the literature on DDT : (January through June 1945)
[Washington, D.C.], [United States Department of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine], [1947]
1947
University of Florida, George A. Smathers Libraries with support from LYRASIS and the Sloan Foundati
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Public domain. The BHL considers that this work is no longer under copyright protection.