Menzel, Donald Howard <br/><br/>
Flying saucers. 

 - Cambridge.  Harvard University Press  1953. 
 - xii, 319 p.  illus. 
<br/><br/>Bibliographical references included in "Notes" (p. [311]-313) 
<br/><br/><label>LCCN: </label>52012419  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Unidentified flying objects
<br/><br/><label>Dewey Class. No.: </label>629.13  / M551