Spencer, John <br/><br/>
Fifty years of UFOs; from distant; sightings to close encounters 
John Spencer and Anne  Spencer 
 - London  Publishera  c1997 
 - 192p.:col.,ill[some illus].;  30cm. 
<br/><br/><label>ISBN: </label>1852839244 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Unidentified Flying Objects-Sightings and Encounters-History<br/>UFO Entourters-History<br/>UFO Sightings<br/>Human-Alien Encounters
<br/><br/><label>Dewey Class. No.: </label>R001.94  / SPE