Mara, Duncan <br/><br/>
Guidelines for the safe use of wastewater and excreta in agriculture and aquaculture   [Book] 
Duncan Mara. 
 -  CBS Publishers & Distributors New Delhi 
<br/><br/> All. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage--Safety Measures
<br/><br/><label>Dewey Class. No.: </label>333.72