Ohaver, M. E. (1982). Solving cipher secrets: A collection of weekly articles and problems concerning codes and ciphers that appeared in "Flynn's weekly" [detective fiction weekly] between March 5, 1927 and Sept. 22, 1928. Aegean Park Press.
Chicago-Zitierstil (17. Ausg.)Ohaver, M. E. Solving Cipher Secrets: A Collection of Weekly Articles and Problems Concerning Codes and Ciphers That Appeared in "Flynn's Weekly" [detective Fiction Weekly] Between March 5, 1927 and Sept. 22, 1928. Laguna Hills, California: Aegean Park Press, 1982.
MLA-Zitierstil (9. Ausg.)Ohaver, M. E. Solving Cipher Secrets: A Collection of Weekly Articles and Problems Concerning Codes and Ciphers That Appeared in "Flynn's Weekly" [detective Fiction Weekly] Between March 5, 1927 and Sept. 22, 1928. Aegean Park Press, 1982.