Dixon, Franklin W.  <br/><br/>
the hardy boys mystery stories 61   : the pentagon spy  

 - New York   Grosset & Dunlap   c1980  
 - 182  illustrations   19cm  
<br/><br/> In The Hardy Boys: The Pentagon Spy (#61), Frank and Joe investigate the theft of valuable Pennsylvania Dutch weather vanes, which leads them to a major espionage plot. They discover a missing Navy employee and stolen top-secret nuclear submarine plans. The brothers, often aided by friend Chet Morton, chase suspects from Pennsylvania to Washington, D.C., and Chesapeake Bay to stop foreign agents.  
<br/><br/><br/>English  
<br/><br/><label>Dewey Class. No.: </label>Fic. D621p 2008