APA (7th ed.) Citation

Old Sleuth. (1910). The secret of the kidnapped heir: A strange detective narrative. Westbrook.

Chicago Style (17th ed.) Citation

Old Sleuth. The Secret of the Kidnapped Heir: A Strange Detective Narrative. Cleveland: Westbrook, 1910.

MLA (9th ed.) Citation

Old Sleuth. The Secret of the Kidnapped Heir: A Strange Detective Narrative. Westbrook, 1910.

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