Dixon, Franklin W. <br/><br/>
Secret of the caves: hardy boys mystery stories, 7 

 - New York:  Grosset & Dunlap,  1992. 
 - 175p.:  ill.;  20cm. 
 - Hardy boys  7. .
<br/><br/><label>ISBN: </label>9780448089072 
<br/><br/><label>Dewey Class. No.: </label>813.54  / DIX