APA (7th ed.) Citation

Hack, R. (2001). Hughes: The private diaries, memos and letters ; the definitive biography of the first American billionaire. New Millennium Press.

Chicago Style (17th ed.) Citation

Hack, Richard. Hughes: The Private Diaries, Memos and Letters ; the Definitive Biography of the First American Billionaire. Beverly Hills: New Millennium Press, 2001.

MLA (9th ed.) Citation

Hack, Richard. Hughes: The Private Diaries, Memos and Letters ; the Definitive Biography of the First American Billionaire. New Millennium Press, 2001.