APA (7th ed.) Citation

Andersen, H. C. (1850). The story of the eleven wild swans. [publisher not identified].

Chicago Style (17th ed.) Citation

Andersen, H. C. The Story of the Eleven Wild Swans. [Place of publication not identified]: [publisher not identified], 1850.

MLA (9th ed.) Citation

Andersen, H. C. The Story of the Eleven Wild Swans. [publisher not identified], 1850.