Dixon, Franklin W. <br/><br/>
The secret of the lost tunnel 
by Franklin W. Dixon. 
 - New York :  Grosset & Dunlap,  c1977. 
 - 177 p. ;  20 cm. 
 - The Hardy boys mystery stories ;  29 .
<br/><br/>
<br/><br/><label>ISBN: </label>0448089297 
<br/><br/><label>Subjects--Personal Names: </label><br/>Hardy Boys (Fictitious characters) --Juvenile fiction.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mystery and detective stories.
<br/><br/><label>LC Class. No.: </label>PZ7.D644 
<br/><br/><label>Dewey Class. No.: </label>Fic. D6213s 1977 Bk.29