APA (7th ed.) Citation

Hall Allan. (1994). The World;s Greatest Secrets. Secrets.

Chicago Style (17th ed.) Citation

Hall Allan. The World;s Greatest Secrets. London: Secrets, 1994.

MLA (9th ed.) Citation

Hall Allan. The World;s Greatest Secrets. Secrets, 1994.

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