Assessment of the habitats, biota, sediments, and water quality near the discharge of primary-treated effluent from the Mayagüez Regional Wastewater Treatment Plant, Bahía de Añasco, Puerto Rico 
by Richard M.T. Webb ... [et al.] ; in cooperation with the Puerto Rico Aqueduct and Sewer Authority.      
 - San Juan, P.R.  Denver, CO  U.S. Dept. of the Interior, U.S. Geological Survey  Branch of Information Services [distributor]  2000.      
 - x, 196 p.  ill., maps  28 cm.      
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Waste disposal in the ocean--Environmental aspects--Puerto Rico.<br/>Water quality biological assessment--Puerto Rico.
<br/><br/><label>Dewey Class. No.: </label>628.445  / A8467