Open University <br/><br/>
Geophysical 
Open University 
 - Walton  Hall Open University         1973 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>44917 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Geophysics<br/>Geology
<br/><br/><label>Dewey Class. No.: </label>H:(C), L3