Detwyler, Thomas R. <br/><br/>
Man's impact on environment 

 - London  Mcgraw-Hill Book Company  1971 
 - xlll, 731p.  4x< 
 - Mc Graw Hill Sr. In Geography .
<br/><br/><label>Subjects--Topical Terms: </label><br/>U47
<br/><br/><label>Dewey Class. No.: </label>U47  / K1