Loftas, Tony. <br/><br/>
The Last resource :  man's exploitation of the oceans / 
Tony Loftas. 
 - Rev ed. 
 - Harmondsworth :  Penguin,  1972. 
 - 317 p. : ill., maps ; 19 cm. 
<br/><br/>Includes bibliographical references : p. 300-308. 
<br/><br/><label>ISBN: </label>0140215182 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marine resources.