Open University <br/><br/>
Earth: structure, composition and evolution 

 - Walton  Hall Open University         1981 
 - 80p.  cm. 
<br/><br/><label>Standard No.: </label>48454 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Epigene<br/>Geology
<br/><br/><label>Dewey Class. No.: </label>H42, M1