UUFOs in the 1980sUFOs in the 1980sde Jerome ClarkMateriasUnidentified flying objectsHistoryEdiciones (1)UFOs in the 1980s (1990)Apogee Books · inglésMás obras de Jerome ClarkTThe emergence of a phenomenonThe emergence of a phenomenonHidden realities, lost civilizations, and beings from other worldsHidden realms, lost civilizations, and beings from other worlds
