APA (7th ed.) Citation

Hayes, H. (1990). The dark romance of Dian Fossey. Simon and Schuster.

Chicago Style (17th ed.) Citation

Hayes, Harold. The Dark Romance of Dian Fossey. New York: Simon and Schuster, 1990.

MLA (9th ed.) Citation

Hayes, Harold. The Dark Romance of Dian Fossey. Simon and Schuster, 1990.