Ramos,Rosario G, <br/><br/>Correlation between zooplankton population and organic natter concentration in laguna de bay  - Morong,Rizal  [publisher not identified]  1988  - 44 leaves :  illustrations ; 28 cm. <br/><br/><label>Subjects--Topical Terms: </label><br/>Biology -- Research.<br/><br/><label>Dewey Class. No.: </label>574.078  / R14 c