Tassos, John <br/><br/>
The underwater world :  a complete guide to diving speartishing, and other underwater secrets / 
John Tassos 
 - Englewood Cliffs :  Prentice-Hall,  1957 
 - xii, 242 p. :  ill. ;  21 cm. 
<br/><br/> Include index 
<br/><br/><label>ISBN: </label> U. S. D. 4.95