APA (7th ed.) Citation

(1974). The Hardy Boys: The Haunted Fort, The Mystery of the Whale Tattoo. Great Britain.

Chicago Style (17th ed.) Citation

The Hardy Boys: The Haunted Fort, The Mystery of the Whale Tattoo. London: Great Britain, 1974.

MLA (9th ed.) Citation

The Hardy Boys: The Haunted Fort, The Mystery of the Whale Tattoo. Great Britain, 1974.

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