The First Book of Codes and Ciphers
By: by Sam and Beryl Epstein.  Pictures by Laszlo Roth.
Contributors: Epstein, Beryl Williams, 1910- joint author.
Series: First books
Publisher: F. Watts
Published: 1956
Place of publication: [New York
Language: eng
Number of pages: 59
Subjects: Ciphers -- Juvenile literature.
Genres: Juvenile literature.