Mann, H.T.Williamson, D. <br/><br/>
Water treatment and sanitation: a handbook of simple methods for rural areas in developing countries. 

 - London :  Itp,  020505. 
 - 96p. :ill. 
<br/><br/><label>ISBN: </label>090303123X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water purification--Handbooks, manuals, etc.Sewage--Purification--Handbooks, manuals, etc.Rural health--Handbooks, manuals, etc.Public health--Developing countries--Handbooks, manuals, etc.