Are we alone in the cosmos 
Ben Bova, Byron Preiss 
 - New York  iBooks Inc  1999 
 - xii, 354p.; ill(col.), pictures(col.) 
<br/><br/><label>ISBN: </label>9780965014526 
<br/><br/><label>LC Class. No.: </label>QB 54   / .A7 1999