Costa, H.H. <br/><br/>
Hydrobiology of Colombo (Beira) Lake, I.Diurnal Variations in Temperature, Hydrochemical Factors and Zooplankton 

 - Colombo 15 :  NARA,  1969 
 - 141-149p. 
 - Bulletin of the Fisheries Research Station Sri Lanka (Ceylon)  ; Vol.20 No.2 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aquatic Sciences