Block 1, earth compostion :    elements, minerals and rocks 

 - Walton Hall :    The Open University Press,    c1981, repr. 1990 
 - 99 p. :    ill. ;    30 cm. 
 - The earth: structure, composition and evolution Science: a second level  course .
<br/><br/><label>ISBN: </label>0335160557 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Earth sciences -- Great Britain<br/> Geology -- Great Britain
<br/><br/><label>Dewey Class. No.: </label>551