Spencer, John,  1954- <br/><br/>
50 years of UFOs :  from distant sightings to close encounters / 
 Fifty years of UFOs 
John and Anne Spencer. 
 - London :  Boxtree,  c1997. 
 - 192 p. :  ill. (some col ;  29 cm. 
<br/><br/>Includes bibliographical references (p. 185-186) and index. 
<br/><br/> A decade-by-decade study of the UFO phenomenon, from 1947 through the 1990s, looking at significant cases and important developments in reported sightings and contacts within the social and cultural context in which they occurred. 
<br/><br/> Adult  Follett Library Resources. 
<br/><br/><label>ISBN: </label>1852839244 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Unidentified flying objects.<br/>Unidentified flying objects.
<br/><br/><label>Dewey Class. No.: </label>001.942