Keith, L. H. (1996). Compilation of EPA's sampling and analysis methods (2nd ed.). Lewis.
Cita Chicago Style (17a ed.)Keith, Lawrence H. Compilation of EPA's Sampling and Analysis Methods. 2nd ed. Boca Raton [etc.]: Lewis, 1996.
Cita MLA (9a ed.)Keith, Lawrence H. Compilation of EPA's Sampling and Analysis Methods. 2nd ed. Lewis, 1996.
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