APA (7th ed.) Citation

Tompkins, P. (1962). A spy in Rome. Simon and Schuster.

Chicago Style (17th ed.) Citation

Tompkins, Peter. A Spy in Rome. New York: Simon and Schuster, 1962.

MLA (9th ed.) Citation

Tompkins, Peter. A Spy in Rome. Simon and Schuster, 1962.