Jha, V. K., & Wydoski, D. S. (2003). Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory: Determination of organophosphate pesticides in bottom sediment by gas chromatography with flame photometric detection. U.S. Department of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationJha, Virendra K., and Duane S. Wydoski. Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory: Determination of Organophosphate Pesticides in Bottom Sediment by Gas Chromatography with Flame Photometric Detection. Denver, Colorado: U.S. Department of the Interior, U.S. Geological Survey, 2003.
MLA (9th ed.) CitationJha, Virendra K., and Duane S. Wydoski. Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory: Determination of Organophosphate Pesticides in Bottom Sediment by Gas Chromatography with Flame Photometric Detection. U.S. Department of the Interior, U.S. Geological Survey, 2003.