"by Franklin W. Dixon" <br/><br/>
The Hidden Harbor Mystery - 11d 

 -  New York, NY : Grosset & Dunlap, 1961.  2003 
 - 177 
<br/><br/><label>ISBN: </label>9780448089140 
<br/><br/><label>Dewey Class. No.: </label>F823  / 0002178