Παραπομπή σε μορφή APA (7η εκδ.)

Beutelspacher, A. (1994). Cryptology: An introduction to the art and science of enciphering,encrypting, concealing, hiding and safequarding... The Mathematical Association of America.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Beutelspacher, Albrecht. Cryptology: An Introduction to the Art and Science of Enciphering,encrypting, Concealing, Hiding and Safequarding... USA: The Mathematical Association of America, 1994.

Παραπομπή σε μορφή MLA (8th εκδ.)

Beutelspacher, Albrecht. Cryptology: An Introduction to the Art and Science of Enciphering,encrypting, Concealing, Hiding and Safequarding... The Mathematical Association of America, 1994.