Spencer, Edgar W. <br/><br/>
Introduction to the structure of the earth / 
Edgar W. Spencer 
 - New York :  McGraw-Hill,  c1969 
 - 597 p. :  ill., maps ;  24 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> USD 23.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology, Structural
<br/><br/><label>Dewey Class. No.: </label>551.1