APA (7th ed.) Citation

Zhang, J., Ortner, P. B., & Fischer, C. J. (1997). Method 353.4: Determination of Nitrate and Nitrite in Estuarine and Coastal Waters by Gas Segmented Continuous Flow Colorimetric Analysis (Revision 2.0.). United States Environmental Protection Agency, Office of Research and Development, National Exposure Research Laboratory.

Chicago Style (17th ed.) Citation

Zhang, Jia-Zhong, Peter B. Ortner, and Charles J. Fischer. Method 353.4: Determination of Nitrate and Nitrite in Estuarine and Coastal Waters by Gas Segmented Continuous Flow Colorimetric Analysis. Revision 2.0. [Cincinnati, Ohio]: United States Environmental Protection Agency, Office of Research and Development, National Exposure Research Laboratory, 1997.

MLA (9th ed.) Citation

Zhang, Jia-Zhong, et al. Method 353.4: Determination of Nitrate and Nitrite in Estuarine and Coastal Waters by Gas Segmented Continuous Flow Colorimetric Analysis. Revision 2.0. United States Environmental Protection Agency, Office of Research and Development, National Exposure Research Laboratory, 1997.