Kircher, Harry B.. <br/><br/>
Our natureal resources /  
by Harry B.Kircher,Donald L.Wallace. 
 - Fifth Edn. /  
 - Illinois :   The Interstate printers & Publishers,Inc. ,   1971 
 - xxi,425p ;  
<br/><br/><label>ISBN: </label>0-8314-2166-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural Resources
<br/><br/><label>Dewey Class. No.: </label>H  / M2