Hesser, Dale T. <br/><br/>
Focus on Science/ 
By Dale T. Hesser. 
 - Columbus:  Merril Pub.,  1989. 
 - x, 614 p.: 
<br/><br/><label>ISBN: </label>9780675026710 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth sciences-Textbooks.<br/>Earth sciences-Study and teaching (elementary)
<br/><br/><label>LC Class. No.: </label>QE28  / HES1989