APA (7th ed.) Citation

Berger, T. (1991). Changing the past: A novel. Penguin Books.

Chicago Style (17th ed.) Citation

Berger, Thomas. Changing the Past: A Novel. New York, N.Y., U.S.A.: Penguin Books, 1991.

MLA (9th ed.) Citation

Berger, Thomas. Changing the Past: A Novel. Penguin Books, 1991.