Epstein, S., & Epstein, B. W. (1956). The first book of codes and ciphers. New York: Franklin Watts.
シカゴスタイル引用形Epstein, Sam., , Beryl Williams Epstein. The First Book of Codes and Ciphers. New York: Franklin Watts, 1956.
MLA引用形式Epstein, Sam., , Beryl Williams Epstein. The First Book of Codes and Ciphers. New York: Franklin Watts, 1956.
警告: この引用は必ずしも正確ではありません.