San Juan, Puerto Rico : U.S. Department of the Interior, U.S. Geological Survey, 1988
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Map
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Full Title:
Potentiometric surface of the Turpentine Run basin aquifer in the Tutu area, eastern St. Thomas, U.S. Virgin Islands, September 11, 1987 / by Robert P. Graves and Ralph Gonzalez
Title from title screen (viewed Feb. 4, 2016). Also available online in PDF format from the U.S. Geological Survey Warehouse (http://pubs.er.usgs.gov/). Includes text, table, and location map. "Prepared in cooperation with the U.S. Environmental Protection Agency." Relief shown by contours and spot heights.