The environmental impact of deep sea mining, progress report / 
O.A. Roels...[et al.] 
 - Washington :  United States Government Printing Office,  1973 
 - iv, 183 p. :  ill. ;  28 cm. 
 - NOAA Technical report ERL ;  290-OD 11 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ocean mining<br/>Mining machinery--Automatic control
<br/><br/><label>Dewey Class. No.: </label>622.295