Ryker, S. J., & Frans, L. M. (2000). Summary of nitrate concentrations in ground water of Adams, Franklin, and Grant Counties, Washington, fall 1998: A baseline for future trend analysis. U.S. Geological Survey.
Chicago Style (17th ed.) CitationRyker, Sarah J., and Lonna M. Frans. Summary of Nitrate Concentrations in Ground Water of Adams, Franklin, and Grant Counties, Washington, Fall 1998: A Baseline for Future Trend Analysis. Tacoma, Washington: U.S. Geological Survey, 2000.
MLA (9th ed.) CitationRyker, Sarah J., and Lonna M. Frans. Summary of Nitrate Concentrations in Ground Water of Adams, Franklin, and Grant Counties, Washington, Fall 1998: A Baseline for Future Trend Analysis. U.S. Geological Survey, 2000.
Warning: These citations may not always be 100% accurate.