Knoing, H.W. <br/><br/>
Setting environmental standards: Guideline for decision making  H.W. Knoing. 

 - New Delhi  B.R. Publishing  1987 
 - iv, 97p., ill. 23cm. 
<br/><br/><label>ISBN: </label>81-7018-041-2. 
<br/><br/><label>Dewey Class. No.: </label>614.7,  / K94S