APA (7th ed.) Citation

Walpole, H., & Morley, H. (1996). The Castle of Otranto. Project Gutenberg.

Chicago Style (17th ed.) Citation

Walpole, Horace, and Henry Morley. The Castle of Otranto. Project Gutenberg, 1996.

MLA (9th ed.) Citation

Walpole, Horace, and Henry Morley. The Castle of Otranto. Project Gutenberg, 1996.

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