McClellan, Grant S, Ed. <br/><br/>
Protecting our environment, Vol.42 

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 - H W Wilson Co., New York  1971 
 - 218 
 - .
<br/><br/>  
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental management-- Ecosystems
<br/><br/><label>Dewey Class. No.: </label>577.17  MCC-P.42