Sumner.John S. <br/><br/>
Geophysics geologyic structures and tectonics. 

 - ed. 
 - Dubuque :  Brown,  1969. 
 - 115  p. :  ill ;    cm. 
<br/><br/>index. 
<br/><br/><label>ISBN: </label> $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>tectonics.