Foster, Robert J.  1929- <br/><br/>
Geology / 
Robert J. Foster 
 - 6th ed. 
 - New York :  MacMillan,  1991 
 - 228 p. :  ill.;  24 cm. 
<br/><br/><label>ISBN: </label>0675211247 
<br/><br/><label>LCCN: </label>90-043726 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology