Mara, D. Duncan <br/><br/>
Guidelines for the safe use of wastewater and excreta in agriculture and aquaculture :  Measures for public health protection / 
Prepared by D.D. Mara & S. Cairncross. 
 - Geneva :  World Health Organization,  1989. 
 - vii, 187 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>92-4-154248-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage--Safety measures<br/>Sewage irrigation--Safety measures<br/>Night soi--Safety measures