APA (7th ed.) Citation

White, G., & Fisher, J. (1947). The natural history of Selborne. [publisher not identified].

Chicago Style (17th ed.) Citation

White, Gilbert, and James Fisher. The Natural History of Selborne. London: [publisher not identified], 1947.

MLA (8th ed.) Citation

White, Gilbert, and James Fisher. The Natural History of Selborne. [publisher not identified], 1947.