Johnson, Merike. <br/><br/>
Natural water quality / 
Merike Johnson. 
 - Australia :  ANU Press,  1978. 
 - 67 p. :  ill. ;  25 cm. 
<br/><br/> Botany Bay working paper no.4 (Completed July 1978) 
<br/><br/><label>ISBN: </label>0708103405  RM15.53 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Groundwater.<br/>Groundwater--Quality.<br/>Water quality.