["FICTION \/ Science Fiction \/ Space Opera","Technology & Engineering \/ Aeronautics & Astronautics","International relations;Fiction.","Nuclear warfare;Fiction.","War games;Fiction.","AMERICAN MYSTERY & SUSPENSE FICTION","FICTION \/ Science Fiction \/ Space Opera","Fiction","Fiction-Science Fiction","GENERAL","General Adult","International relations;Fiction.","Nuclear warfare;Fiction.","SCIENCE FICTION AND FANTASY","Science Fiction","Technology & Engineering \/ Aeronautics & Astronautics","United States","War games;Fiction."]