Annual conference :  "What's new", 8-10 August 1990, Otumoetai Trust Hotel, Tauranga. 
 What's new 

 - 262 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water-supply--New Zealand<br/>Water-supply engineering<br/>Water quality management
<br/><br/><label>Dewey Class. No.: </label>628.1