Ayres, Rachel M  & Mara, Duncan D <br/><br/>
Analysis of wastewater for use in agriculture 

 - WHO, Geneva  1996 
 - iv,31 
<br/><br/><label>ISBN: </label>92-4-154484-8 
<br/><br/><label>Dewey Class. No.: </label>630.2899 Ayr/Mar