Advanced wreck diving guide 
Gentile, Gary. 
 -  Cornell Maritime Press.  1988 
 - viii, 136 pages. 
<br/><br/>
<br/><br/><label>ISBN: </label>0-87033-380-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Diving, Submarine.
<br/><br/><label>Dewey Class. No.: </label>M 627.72 G29a 1988