Dooley, J. F. (2023). The Gambler and the Scholars: Herbert Yardley, William & Elizebeth Friedman, and the Birth of Modern American Cryptology (1st ed. 2023.). Springer Nature Switzerland : Imprint: Springer. https://doi.org/10.1007/978-3-031-28318-5
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Dooley, John F. The Gambler and the Scholars: Herbert Yardley, William & Elizebeth Friedman, and the Birth of Modern American Cryptology. 1st ed. 2023. Cham: Springer Nature Switzerland : Imprint: Springer, 2023. https://doi.org/10.1007/978-3-031-28318-5.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Dooley, John F. The Gambler and the Scholars: Herbert Yardley, William & Elizebeth Friedman, and the Birth of Modern American Cryptology. 1st ed. 2023. Springer Nature Switzerland : Imprint: Springer, 2023. https://doi.org/10.1007/978-3-031-28318-5.