APA (7th ed.) Citation

Potter, M., & Potter, A. (1943). A history of the countryside. Penguin Books.

Chicago Style (17th ed.) Citation

Potter, Margaret, and Alexander Potter. A History of the Countryside. West Drayton: Penguin Books, 1943.

MLA (9th ed.) Citation

Potter, Margaret, and Alexander Potter. A History of the Countryside. Penguin Books, 1943.