"by Franklin W. Dixon" <br/><br/>
The HIDDEN HARBOR MYSTERY 

 -  ,New York : Grosset & Dunlap, c1965.  1965 
 - 176 
<br/><br/><label>ISBN: </label>9780448089140 
<br/><br/><label>Dewey Class. No.: </label>F823  / 893