APA (7th ed.) Citation

O'Malley, M. (1990). Keeping watch: A history of American time. Viking.

Chicago Style (17th ed.) Citation

O'Malley, Michael. Keeping Watch: A History of American Time. New York: Viking, 1990.

MLA (8th ed.) Citation

O'Malley, Michael. Keeping Watch: A History of American Time. Viking, 1990.