APA (7th ed.) Citation

Walpole, H., & Lewis, W. S. (1975). The Castle of Otranto: A Gothic story.

Chicago Style (17th ed.) Citation

Walpole, Horace, and W. S. Lewis. The Castle of Otranto: A Gothic Story. 1975.

MLA (9th ed.) Citation

Walpole, Horace, and W. S. Lewis. The Castle of Otranto: A Gothic Story. 1975.

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