APA (7th ed.) Citation

Winterbotham. (1997). The ultra secret. Orion.

Chicago Style (17th ed.) Citation

Winterbotham. The Ultra Secret. London: Orion, 1997.

MLA (9th ed.) Citation

Winterbotham. The Ultra Secret. Orion, 1997.

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