APA (7th ed.) Citation

Jefferies, R. (1938). The Story of my heart. Penguin.

Chicago Style (17th ed.) Citation

Jefferies, Richard. The Story of My Heart. London: Penguin, 1938.

MLA (9th ed.) Citation

Jefferies, Richard. The Story of My Heart. Penguin, 1938.

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