Treatment agents and processes for drinkingwater and their effects on health :  report on a working group, Bressels 6-9 December, 1977. 

 - Copenhagen,  1978. 
<br/><br/> Report also issued in French and Russian. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water -- Purification.--Water -- Purification.<br/>Public health administration.