Torres-González, S., & Rodriguez-del-Rio, F. (1990). Potentiometric surface of the Kings Hill aquifer and hydrologic conditions in Saint Croix, U.S. Virgin Islands, July 1987. U.S. Geological Survey, Water Resources Division, Caribbean District.
Chicago Style (17th ed.) CitationTorres-González, Sigfredo, and Felix Rodriguez-del-Rio. Potentiometric Surface of the Kings Hill Aquifer and Hydrologic Conditions in Saint Croix, U.S. Virgin Islands, July 1987. San Juan, Puerto Rico: U.S. Geological Survey, Water Resources Division, Caribbean District, 1990.
MLA (9th ed.) CitationTorres-González, Sigfredo, and Felix Rodriguez-del-Rio. Potentiometric Surface of the Kings Hill Aquifer and Hydrologic Conditions in Saint Croix, U.S. Virgin Islands, July 1987. U.S. Geological Survey, Water Resources Division, Caribbean District, 1990.