Schulz, Christopher R. <br/><br/>
Surface water treatment for communities in developing countries / 
Christopher R. Schulz, Daniel A. Okun 
 -  Intermediate technology,  c1984. 
 - xii, 299p. :  ill. ;  24cm. 
<br/><br/>includes index 
<br/><br/><label>ISBN: </label>1853391425 
<br/><br/><label>Subjects--Topical Terms: </label><br/>water trearment<br/>water purification
<br/><br/><label>Dewey Class. No.: </label>628.162  / SCH