APA (7th ed.) Citation

Zimmermann, C. F., Keefe, C. W., & Bashe, J. (1997). Method 440.0: Determination of carbon and nitrogen in sediments and particulates of estuarine/coastal waters using elemental analysis (Revision 1.4.). U.S. Environmental Protection Agency, Office of Research and Development, National Exposure Research Laboratory.

Chicago Style (17th ed.) Citation

Zimmermann, Carl F., Carolyn W. Keefe, and Jerry Bashe. Method 440.0: Determination of Carbon and Nitrogen in Sediments and Particulates of Estuarine/coastal Waters Using Elemental Analysis. Revision 1.4. [Cincinnati, Ohio]: U.S. Environmental Protection Agency, Office of Research and Development, National Exposure Research Laboratory, 1997.

MLA (9th ed.) Citation

Zimmermann, Carl F., et al. Method 440.0: Determination of Carbon and Nitrogen in Sediments and Particulates of Estuarine/coastal Waters Using Elemental Analysis. Revision 1.4. U.S. Environmental Protection Agency, Office of Research and Development, National Exposure Research Laboratory, 1997.