Water-quality reconnaissance of Laguna Tortuguero, Vega Baja, Puerto Rico, March 1999-May 2000 [electronic resource] / by Luis R. Soler-Lopez, Senen Guzman-Rios, and Carlos Conde-Costas ; prepared in cooperation with the Puerto Rico Environmental Quality Board.
Imprint
Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2006.
Mode of access: Internet from the USGS web site. Address as of 11/6/06: http://pubs.usgs.gov/of/2006/1049/pdf/OFR2006-1049.pdf; current access via PURL.
Note
Title from PDF title screen (viewed on Oct. 4, 2006).