Man and his environment :  proceedings ... / 
edited by M.A. War d 
 - 1st ed. 
 - Oxford :  Pergamon Press,  1970- 
 - v. :  ill. ;  26 cm. 
<br/><br/> " Sponsored jointly by the University of Calgary and the Engineering Institute of Canada 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollution--Congresses
<br/><br/><label>Dewey Class. No.: </label>628.5