APA (7th ed.) Citation

Highsmith, P. (1972). This sweet sickness. Penguin Books.

Chicago Style (17th ed.) Citation

Highsmith, Patricia. This Sweet Sickness. Harmondsworth, Middlesex, England ; New York, N.Y.: Penguin Books, 1972.

MLA (9th ed.) Citation

Highsmith, Patricia. This Sweet Sickness. Penguin Books, 1972.