Alexander, E. Calvin,  Jr. <br/><br/>
The evolving earth :  a student supplement / 
E. Calvin Alexander, Jr. 
 - 2nd ed. 
 - New York :  MacMillan,  1978 
 - 141 p. ;  24 cm. 
<br/><br/> To be used in conjuction with: The evolving earth : a text in physical geology by Fredrick L. Sawkins ... (et al.) 
<br/><br/><label>ISBN: </label>0023016701 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical geology<br/>Plate tectonics