APA Alıntı

Epstein, S., & Epstein, B. W. (1956). The first book of codes and ciphers. New York: Franklin Watts.

Chicago Stili Alıntı

Epstein, Sam., ve Beryl Williams Epstein. The First Book of Codes and Ciphers. New York: Franklin Watts, 1956.

MLA Alıntı

Epstein, Sam., ve Beryl Williams Epstein. The First Book of Codes and Ciphers. New York: Franklin Watts, 1956.