![](/img/cover-not-exists.png)
Secret Ciphers (preliminary trial ed.) (L, S)by Josephine ; Richard Andree;Cryptarithms (preliminary trial ed.) (L, S)by Josephine ; Richard Andree;Instructor's Manual for Cryptarithms (preliminary trial ed.) (L, S)by Josephine ; Richard Andree
Review by: Philip PeakVolume:
70
Language:
english
Journal:
The Mathematics Teacher
DOI:
10.2307/27961120
Date:
December, 1977
File:
PDF, 265 KB
english, 1977