Community water supply and excreta disposal in South East Asia 
/ World Health Organisation 
 - New Delhi:    World Health Organisation,              1977 
 - 53p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language
<br/><br/><label>Subjects--Index Terms: </label>Water 
<br/><br/><label>Universal Decimal Class. No.: </label>R 628.1+628.336.7(59)  / L7