Heller, R.O...(Et Al.) <br/><br/>
Earth science. 

 - 2nd. 
 - New York :  Mcgraw-Hill,  1979. 
 - xi, 468p. 
 - Challenges to science .
<br/><br/> Includes glossary and index. 
<br/><br/><label>ISBN: </label>0070280371 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth sciences.<br/>Astronomy.<br/>Earth sciences.<br/>Astronomy.