Methodologies for assessing the impact of deep sea-bed minerals on the world economy 

 - New  York United Nations USA      1986 
 - 153p.  cm. 
<br/><br/><label>Standard No.: </label>87557 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Minings
<br/><br/><label>Dewey Class. No.: </label>"X9(HZ).1.N8, M6/UN"