Boekdetails
Formaat
Hardcover
Pagina's
48
Taal
Engels
Gepubliceerd
Jan 1, 1978
Uitgever
G.P. Putnam's Sons
ISBN-10
0399610898
ISBN-13
9780399610899
Beschrijving
Explains that most sightings of unidentified flying objects are actually understandable phenomena and discusses the possibility of intelligent life existing elsewhere in the universe.