Who guidelines for the safe use of wastewater excreta and greywater 

 - 3rd ed. 
 - Switzerland  world  health organization  2006 
 - xxiii  ill. 
<br/><br/><label>ISBN: </label>9789241546836 
<br/><br/><label>Subjects--Topical Terms: </label><br/>wastewater use in agriculture
<br/><br/><label>LC Class. No.: </label>MEDREF S657  / .W486