APA (7th ed.) Citation

Donovan, R. J. (1955). The assassins ([1st ed.].). Harper.

Chicago Style (17th ed.) Citation

Donovan, Robert J. The Assassins. [1st ed.]. New York: Harper, 1955.

MLA (9th ed.) Citation

Donovan, Robert J. The Assassins. [1st ed.]. Harper, 1955.