APA (7th ed.) Citation

Barlett, D. L., & Steele, J. B. (1979). Empire: The life, legend, and madness of Howard Hughes. Norton.

Chicago Style (17th ed.) Citation

Barlett, Donald L., and James B. Steele. Empire: The Life, Legend, and Madness of Howard Hughes. New York: Norton, 1979.

MLA (9th ed.) Citation

Barlett, Donald L., and James B. Steele. Empire: The Life, Legend, and Madness of Howard Hughes. Norton, 1979.

Warning: These citations may not always be 100% accurate.