Undersea treasures. 

 - Washington, D.C. :  National Geographic Society,  1974 
 - 199 p. :  illus. ;  26 cm. 
<br/><br/>Bibliography: p. 199. 
<br/><br/> Open access. 
<br/><br/><label>ISBN: </label>0870441477 
<br/><br/><label>LCCN: </label>741563  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Treasure troves.<br/>Underwater archaeology.