Brief review to be added of Steven Greer's book “Extraterrestrial Contact: The Evidence and Implications” (1999) (available on Amazon USA and on Amazon UK)
Brief review to be added of Steven Greer's book “Hidden Truth – Forbidden Knowledge” (2006) (available on Amazon USA and on Amazon UK).
Brief review to be added of James Gunn's novel “The Listeners” (1972) (available on Amazon USA and on Amazon UK)
Brief review to be added of Jimmy Guieu's book “Flying Saucers Come From Another World” (1956) (available on Amazon USA and on Amazon UK)
Brief review to be added of Karl Guthke's book “The Last Frontier : Imagining Other Worlds From the Copernican Revolution to Modern Science Fiction : Imagining Other Worlds From the Copernican Revolution to Modern Science Fiction” (1990) (available on Amazon USA and on Amazon UK).