Airplane industry

Brassey's World Aircraft & Systems Directory: 1996/97

Michael J. H. Taylor

Beyond the Horizons: The Lockheed Story

Walter J. Boyne

Project cancelled: British aircraft that never flew

by Derek Wood.

Beyond the Horizon: The Story of Lockheed (Thomas Dunne Book)

Walter J. Boyne

Die deutsche Luftrüstung 1933-1945

Heinz J. Nowarra.

William Boeing: builder of planes

by Sharlene and Ted Nelson.

Climb to greatness: the American aircraft industry, 1920-1960

[by] John B. Rae.

Howard Hughes, his achievements & legacy: the authorized pictorial biography

text by Robert Maguglin ; historical consultant, Bill M. Winberg.

U.S. civil aircraft

by Joseph P. Juptner.

U.S. civil aircraft series

Joseph P. Juptner.