Earth science :  the challenge of discovery / 
Robert E. Snyder ... [et al.]. 
 - Lexington, Mass. :  D. C. Heath,  c1991. 
 - 32, xii, 656 p. : ill. ; 24 cm. 
 - Challenge of discovery program. .
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0669180491 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth sciences--Study and teaching (Secondary).