APA (7th ed.) Citation

Hitt, K. J., & Nolan, B. T. (2005). Nitrate in ground water: Using a model to simulate the probability of nitrate contamination of shallow ground water in the conterminous United States. USGS National Water-Quality Assessment Program.

Chicago Style (17th ed.) Citation

Hitt, Kerie J., and Bernard T. Nolan. Nitrate in Ground Water: Using a Model to Simulate the Probability of Nitrate Contamination of Shallow Ground Water in the Conterminous United States. Reston, Va.: USGS National Water-Quality Assessment Program, 2005.

MLA (9th ed.) Citation

Hitt, Kerie J., and Bernard T. Nolan. Nitrate in Ground Water: Using a Model to Simulate the Probability of Nitrate Contamination of Shallow Ground Water in the Conterminous United States. USGS National Water-Quality Assessment Program, 2005.