00565nam a22001457a 4500003000400000005001700004008004100021040001400062100002400076245010900100260000900209300002800218500014100246504003200387OSt20171010095555.0121217t        xxu||||| |||| 00| 0 eng d  aMMSUcULS  aDiego, Angeline M.   aBiodiversity of molluscan species as affected by various pollutants in Ilocos Norte cAngeline M. Diego   c2006  axv, 87 leaves c28 cm.   aThesis (BS Environmental Science) -- Mariano Marcos State University-College of Agriculture, Food & Sustainable Development, Batac City   aBibliography: leaves 41-42