Riste, Olav The Norwegian Intelligence Service, 1945-1970 (0714644552)
                                
                                
                             
                            
                         
                            
                            
                        This is a history of the Norwegian Intelligence Service (NIS) during the Cold War, based on its secret archives. The author describes a service that grew from a handful of specialists in 1946 to a multi-faceted organization with a personnel of about 1000 by the end of the 1960s.