APA (7th ed.) Citation

Conde-Costas, C., & Gómez-Gómez, F. (1999). Assessment of nitrate contamination of the upper aquifer in the Manatí-Vega Baja area, Puerto Rico. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Conde-Costas, Carlos, and Fernando Gómez-Gómez. Assessment of Nitrate Contamination of the Upper Aquifer in the Manatí-Vega Baja Area, Puerto Rico. San Juan, P.R.: U.S. Dept. of the Interior, U.S. Geological Survey, 1999.

MLA (9th ed.) Citation

Conde-Costas, Carlos, and Fernando Gómez-Gómez. Assessment of Nitrate Contamination of the Upper Aquifer in the Manatí-Vega Baja Area, Puerto Rico. U.S. Dept. of the Interior, U.S. Geological Survey, 1999.