Παραπομπή APA

Mollin, R. A. (2005). Codes: The guide to secrecy from ancient to modern times. Chapman and Hall/CRC.

Παραπομπή Chicago Style

Mollin, Richard A. Codes: The Guide to Secrecy from Ancient to Modern Times. Boca Raton: Chapman and Hall/CRC, 2005.

Παραπομπή MLA

Mollin, Richard A. Codes: The Guide to Secrecy from Ancient to Modern Times. Chapman and Hall/CRC, 2005.