APA (7th ed.) Citation

Boyle, K. (1955). The seagull on the step ([1st ed.].). Knopf.

Chicago Style (17th ed.) Citation

Boyle, Kay. The Seagull on the Step. [1st ed.]. New York: Knopf, 1955.

MLA (9th ed.) Citation

Boyle, Kay. The Seagull on the Step. [1st ed.]. Knopf, 1955.