Search Results       Your search for [subject]Snail (Pleurocera) returned 1 record.           A study on the levels of mercury and lead in Biga-an River, Bukidnon. by Ratilla,Romela N.; Iligan City: MSU-Iligan Institute of Technology, 1999. Subject: Chemistry; Water pollution -- Biga-an River,Bukidnon; Mercury; Lead; Sediments; Plants; Elodea densa; Chromolaena odorata; Snail (Pleurocera).          Add to Book Cart Relevance: 20.06%