APA (7th ed.) Citation

Ludlum, R. (1990). The Bourne ultimatum. Bantam Books.

Chicago Style (17th ed.) Citation

Ludlum, Robert. The Bourne Ultimatum. New York, New York: Bantam Books, 1990.

MLA (9th ed.) Citation

Ludlum, Robert. The Bourne Ultimatum. Bantam Books, 1990.

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