A cost model of deep ocean mining and associated regulatory issues / 
J. D. Nyhart...[et al.]. 
 - [Washington, D.C.] :  U.S. Dept. of Commerce, National Tecnical Information Service,  1978. 
 - xv, [in various pagings] :  ill. 
<br/><br/> Prepared for National Oceanic and Atmospheric Administration. 
<br/><br/><label>LCCN: </label>88990969 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ocean mining--Cost of operation--Research.<br/>Ocean mining--Econonic aspects.<br/>Ocean bottom.