http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Estimated water use in Puerto Rico, 2010
Department of Natural and Environmental Resources.
Puerto Rico Aqueduct and Sewer Authority
1 online resource (vi, 35 pages) : illustrations, maps.
"Prepared in cooperation with the Puerto Rico Aqueduct and Sewer Authority, Puerto Rico Department of Natural and Environmental Resources, and the Puerto Rico Environmental Quality Board."
Includes bibliographical references (pages 34-35).
U.S. Geological Survey open-file report ; 2014-1117