Cita APA (7th ed.)

(2003). Swedish signal intelligence, 1900-1945 / by C.G. McKay and Bengt Beckman with a foreword by Michael Herman.

Cita Chicago (17th ed.)

Swedish Signal Intelligence, 1900-1945 / by C.G. McKay and Bengt Beckman with a Foreword by Michael Herman. 2003.

Cita MLA (9th ed.)

Swedish Signal Intelligence, 1900-1945 / by C.G. McKay and Bengt Beckman with a Foreword by Michael Herman. 2003.