Understanding the earth:  A reader in the earth sciences / 
edited by I. G. Gass, Peter Smith and R. C. L Wilson 
 - Wisbech  Balding and Mansell  c1972 
 - 383p.:  Ill.; 
<br/><br/> Includes bibliographic references and index 
<br/><br/><label>ISBN: </label>851413099 
<br/><br/><label>Dewey Class. No.: </label>551