APA (7th ed.) Citation

Kooken, D. L. (1936). Cryptography in Criminal Investigations.

Chicago Style (17th ed.) Citation

Kooken, Don L. Cryptography in Criminal Investigations. 1936.

MLA (9th ed.) Citation

Kooken, Don L. Cryptography in Criminal Investigations. 1936.

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