Secret codes and ciphers.
By: Illustrated by Frank Aloise.
Contributors: Aloise, Frank E., illus.
Publisher: Prentice-Hall
Published: 1968
Place of publication: Englewood Cliffs, N.J
Language: eng
Number of pages: 63
Subjects: Cryptography -- Juvenile literature.; Cryptography.
Description: Describes famous cases involving codes and ciphers, explains different ciphers, and tells how to create your own.
Notes: Published under the author's earliest name: Bernice Kohn.