APA (7th ed.) Citation

Wharton, E. (1990). The reef. Project Gutenberg.

Chicago Style (17th ed.) Citation

Wharton, Edith. The Reef. Champaign, Ill: Project Gutenberg, 1990.

MLA (9th ed.) Citation

Wharton, Edith. The Reef. Project Gutenberg, 1990.