Boar, Roger. <br/><br/>
The world's greatest UFO mysteries / 
Roger Boar, Nigel Blundell 
 - London :  Hamlyn,  1992. 
 - 192 p. :  ill., ports. ;  21 cm 
<br/><br/> Originally published: London: Octopus, 1983 
<br/><br/><label>ISBN: </label>0600572293 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Unidentified flying objects--Sightings and encounters.
<br/><br/><label>LC Class. No.: </label>TL789.3 
<br/><br/><label>Dewey Class. No.: </label>001.942