"contributors","Martin Walters","Felicity Trotman" <br/><br/>
Earth sciences 

 -  Chippenham, Wiltshire : Merlion Publishing, 1992, c1991.  1993 
 - 160 
<br/><br/><label>ISBN: </label>1857370511 
<br/><br/><label>Dewey Class. No.: </label>030  / 3648