Mann, H.T. <br/><br/>
Water treatment and sanitation :   a handbook of simple methods for rural areas in developing countries / 
H.T. Mann & D. Williamson 
 - London :  Intermediate Technology Publications ,  1979 
 - 92p. ;  18 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label><090303123X> 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water supply <br/>Purification<br/>Water<br/>Rural areas<br/>Sanitation
<br/><br/><label>Dewey Class. No.: </label>338.471  / MAN