 | Distribution of chloropicrin used alone or mixed with 80 | (1) |
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 | Distribution of chloropicrin used alone or mixed with 80:20 to fumigate wheat and sorghum / . Storey, Charles L., 1930- 4n Washington, D.C. : U.S. Agricultural Research Service, U.S. Dept. of Agriculture, 1971. | |
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