Guidelines for the safe use of wastewater, excreta and greywater/ 
World Health Organization. 
 - Geneva:  WHO,  2006. 
 - v.< 2,3,4>:  ill.;  24 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/>v.2 Wastewater use in Agriculture--v.3.Wastewater and excreta use in aquaculture--v.4.Excreta and greywater use in agriculture. 
<br/><br/><label>ISBN: </label>9241546867 (set) 9241546832 (v.2) 9241546840 (v.3) 9241546859 (v.4) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage--Safety measures.<br/>Sewage irrigation--Safety measures.<br/>Night soil--Safety measures.<br/>Agriculture--Safety measures.
<br/><br/><label>LC Class. No.: </label>RA567  / W46 2006