APA (7th ed.) Citation

Mahler, B. J., Musgrove, M., & Herrington, C. (2011). Nitrate concentrations and potential sources in the Barton Springs segment of the Edwards Aquifer and its contributing zone, central Texas. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Mahler, B. J., MaryLynn Musgrove, and Chris Herrington. Nitrate Concentrations and Potential Sources in the Barton Springs Segment of the Edwards Aquifer and Its Contributing Zone, Central Texas. [Reston, Va.]: U.S. Dept. of the Interior, U.S. Geological Survey, 2011.

MLA (9th ed.) Citation

Mahler, B. J., et al. Nitrate Concentrations and Potential Sources in the Barton Springs Segment of the Edwards Aquifer and Its Contributing Zone, Central Texas. U.S. Dept. of the Interior, U.S. Geological Survey, 2011.