APA aipamena

Welsh, D. (1988). Codes and cryptography. Oxford [Oxfordshire] : New York: Clarendon Press ; Oxford University Press.

Chicago Style aipamena

Welsh, Dominic. Codes and Cryptography. Oxford [Oxfordshire] : New York: Clarendon Press ; Oxford University Press, 1988.

MLA aipamena

Welsh, Dominic. Codes and Cryptography. Oxford [Oxfordshire] : New York: Clarendon Press ; Oxford University Press, 1988.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.