APA (7th ed.) Citation

Welsh, D. (1995). Codes and cryptography (1st ed. 4th reprint.). Clarendon Press.

Chicago Style (17th ed.) Citation

Welsh, Dominic. Codes and Cryptography. 1st ed. 4th reprint. Oxford: Clarendon Press, 1995.

MLA (9th ed.) Citation

Welsh, Dominic. Codes and Cryptography. 1st ed. 4th reprint. Clarendon Press, 1995.

Warning: These citations may not always be 100% accurate.