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Puerto Rico. Department of Natural and Environmental Resources

Books from the extended shelves:

• Puerto Rico. Department of Natural and Environmental Resources: Estimated water use in Puerto Rico, 1986-87 (U.S. Geological Survey ;, 1995), also by Wanda L. Molina-Rivera, Teresa Dopazo, Geological Survey (U.S.), Puerto Rico. Environmental Quality Board, and Puerto Rico Aqueduct and Sewer Authority (page images at HathiTrust)
• Puerto Rico. Department of Natural and Environmental Resources: Hydrogeology and simulation of ground-water flow in the upper Aquifer of the Río Camuy to Río Grande de Manatí area, Puerto Rico (U.S. Geological Survey ;, 1996), also by Sigfredo Torres-González, José M. Rodríguez, Michael Planert, Puerto Rico Industrial Development Company, Puerto Rico Aqueduct and Sewer Authority, and Geological Survey (U.S.) (page images at HathiTrust)
• Puerto Rico. Department of Natural and Environmental Resources: Hydrogeology of the north coast limestone aquifer system of Puerto Rico (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1995), also by Jesús Rodríguez-Martínez and Geological Survey (U.S.) (page images at HathiTrust)
• Puerto Rico. Department of Natural and Environmental Resources: Hydrology and simulation of ground water flow in the Aguadilla to Rio Camuy area, Puerto Rico (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1996), also by Patrick Tucci, Myrna I. Martínez, and Geological Survey (U.S.) (page images at HathiTrust)
• Puerto Rico. Department of Natural and Environmental Resources: Water balance and quantification of total phosphorus and total nitrogen loads entering and leaving the Lago de Cidra, central Puerto Rico (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1997), also by Orlando Ramos-Ginés, Geological Survey (U.S.), Puerto Rico. Environmental Quality Board, and Puerto Rico Aqueduct and Sewer Authority (page images at HathiTrust)

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