Open University <br/><br/>
Earths physical resources 
Open University 
 -  1973 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>51735 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Dynamic geology<br/>Geology
<br/><br/><label>Dewey Class. No.: </label>H4, L3.3