APA (7th ed.) Citation

Omand, D. (2021). How spies think: Ten lessons in intelligence. Penguin Books.

Chicago Style (17th ed.) Citation

Omand, David. How Spies Think: Ten Lessons in Intelligence. United Kingdom: Penguin Books, 2021.

MLA (9th ed.) Citation

Omand, David. How Spies Think: Ten Lessons in Intelligence. Penguin Books, 2021.

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