Everett-Heath, E. J. (1990). Military helicopters. London : Brassey's.
Cita Chicago (17th ed.)Everett-Heath, E. J. Military Helicopters. London : Brassey's, 1990.
Cita MLA (9th ed.)Everett-Heath, E. J. Military Helicopters. London : Brassey's, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.