Spencer, John <br/><br/>
UFOs :   the definitive casebook / 
John Spencer 
 - London:   Hamlyn,   1991 
 - 192 cm.:   ill. (some col.); 31 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0600572234 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Unidentified flying objects--Sightings and encounters