. . . . . . . . . . . . . . . . . . "Probability of detecting atrazine/desethyl-atrazine and elevated concentrations of nitrite plus nitrate as nitrogen in ground water in the Idaho part of the western Snake River Plain" . "Probability of detecting atrazine/desethyl-atrazine and elevated concentrations of nitrite plus nitrate as nitrogen in ground water in the Idaho part of the western Snake River Plain"@en . . . .