APA (7th ed.) Citation

Rodríguez-del-Río, F., & Quiñones-Aponte, V. (1990). Potentiometric surface of the principal aquifer and hydrologic conditions in the Ponce-Juana Diaz area, Puerto Rico, April-May, 1987. U.S. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Rodríguez-del-Río, Félix, and Vicente Quiñones-Aponte. Potentiometric Surface of the Principal Aquifer and Hydrologic Conditions in the Ponce-Juana Diaz Area, Puerto Rico, April-May, 1987. San Juan, Puerto Rico: U.S. Department of the Interior, U.S. Geological Survey, 1990.

MLA (9th ed.) Citation

Rodríguez-del-Río, Félix, and Vicente Quiñones-Aponte. Potentiometric Surface of the Principal Aquifer and Hydrologic Conditions in the Ponce-Juana Diaz Area, Puerto Rico, April-May, 1987. U.S. Department of the Interior, U.S. Geological Survey, 1990.