Rational use of water and its treatment in the chemical industry 
Economic Comission for Europe  
 - New York  United Nations  1991  
 - x, 146p.  ill.  30 cm. 
<br/><br/> ECE/ CHEM/ 78  
<br/><br/><label>ISBN: </label>9211165008 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemicals industry<br/>Water purification<br/>Water use