Manalo, Girlie T. <br/><br/>
Bioaccumulation potential of water lettuce (Pistia stratiotes) on lead and cadmium colleted from selected sites of Pampanga River and Candaba swamp  [manuscript] / 
Girlie T. Manalo. 
 - Magalang, Pampanga :  Pampanga State Agricultural University,  2015. 
 - 46 pages + 1 CD ;  29 cm.