Ecological risks :  perspectives from Poland and the United States / 
Edited by Wladyslaw Grodzinski, Ellis B. Cowling, Alicja I. Breymeyer.  
 - Washington DC :  National Academy Press,  1990. 
 - xii, 415 pages ;   22 centimeter. 
<br/><br/><label>ISBN: </label>0309042933 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecological risks.
<br/><br/><label>Dewey Class. No.: </label>FOR 577 Ec1 1990