Frank, Mary. <br/><br/>
Underwater mystery / 
by Mary Frank, illus. by Willy Signora. 
 - Recanati :  ELI,  1999. 
 - 62 p. :  illus ;  23 cm. 
<br/><br/><label>ISBN: </label>8881483300 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adventure fiction.<br/>Detevtive stories--Fiction.