Manual for rural water supply / 
edited by Helvetas, Swiss Cooperation for Development, Zuric. 
 - Switzerland :  St. Gall,  1985. 
 - 175 p. ;  30 cm. 
<br/><br/> Open access. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water-supply, Rural.<br/>Rural water--Supp.