APA citiranje

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

Trích dẫn kiểu Chicago

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

MLA citiranje

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