Welsh, D. J. A. (1989). Codes and cryptography (Repr. with corrections.). Clarendon Press ; Oxford University Press.
Čikaški stil citiranja (17. izdanje)Welsh, D. J. A. Codes and Cryptography. Repr. with corrections. Oxford [Oxfordshire] : New York: Clarendon Press ; Oxford University Press, 1989.
MLA način citiranja (8. izdanje)Welsh, D. J. A. Codes and Cryptography. Repr. with corrections. Clarendon Press ; Oxford University Press, 1989.
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