Oceanography :  the changing oceans / 
Prepared by a Course Team for the Open University 
 - Milton Keynes :  Open University,  1978 
 - 58 pages. :  illustrations. ;  30 cm. 
<br/><br/> Units 13 & 14 
<br/><br/><label>ISBN: </label>0335044557 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Oceanography<br/>Ocean