APA (7th ed.) Citation

Parkinson, C. N., & Morgan, V. (1965). Ponies' plot. Penguin Books.

Chicago Style (17th ed.) Citation

Parkinson, C. Northcote, and Violet Morgan. Ponies' Plot. New York: Penguin Books, 1965.

MLA (9th ed.) Citation

Parkinson, C. Northcote, and Violet Morgan. Ponies' Plot. Penguin Books, 1965.

Warning: These citations may not always be 100% accurate.