Ambassador College Deptt.  x <br/><br/>
Our polluted planet  x 

 - x 
 - California  Ambassador College Presss  1968 
 - 78 
<br/><br/>x 
<br/><br/><label>ISBN: </label>x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>WAater - Pollution Water - Pollution 
<br/><br/><label>Dewey Class. No.: </label>614.7/AMO