Understanding the earth :  a reader in the earth sciences / 
edited by I. G. Gass, Peter J. Smith, R. C. L. Wilson  
 - 2nd ed. 
 - Sussex :  Published for the Open University by the Artemis Press,  1972. 
 - 383 pages :  illustrations ; 
<br/><br/> "An Open University book." 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>LCCN: </label>72074-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth sciences.
<br/><br/><label>LC Class. No.: </label>QE 26.2  / .G37 1972 
<br/><br/><label>Dewey Class. No.: </label>550