Walker, Tim. <br/><br/>
Pond water quality management: A farmer's handbook 

 - Australia  Turtle Press  1994 
 - 68 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fish ponds<br/>Pond ecology
<br/><br/><label>Dewey Class. No.: </label>639.31  / WAL