APA (7th ed.) Citation

Barone, R. E. F. (2022). Unbreakable: The spies who cracked the Nazis' secret code (First edition.). Henry Holt and Company.

Chicago Style (17th ed.) Citation

Barone, Rebecca E. F. Unbreakable: The Spies Who Cracked the Nazis' Secret Code. First edition. New York: Henry Holt and Company, 2022.

MLA (8th ed.) Citation

Barone, Rebecca E. F. Unbreakable: The Spies Who Cracked the Nazis' Secret Code. First edition. Henry Holt and Company, 2022.

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