APA (7th ed.) Citation

McHale, M. R., & McChesney, D. (2007). Phosphorus concentrations in stream-water and reference samples: An assessment of laboratory comparability. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

McHale, Michael R., and Dennis McChesney. Phosphorus Concentrations in Stream-water and Reference Samples: An Assessment of Laboratory Comparability. Reston, Va.: U.S. Geological Survey, 2007.

MLA (9th ed.) Citation

McHale, Michael R., and Dennis McChesney. Phosphorus Concentrations in Stream-water and Reference Samples: An Assessment of Laboratory Comparability. U.S. Geological Survey, 2007.