Cryptarithms and other arithmatical pastimes
Kuenzi, N. J.
Cryptarithms and other arithmatical pastimes N. J. Kuenzi and Bob Frielipp - Pennsylvania School Science and Mathematics Association c1979 - ii,54p.; 24cm.- - Topics for teachers series; no.1 .
513.22 / KUE
Cryptarithms and other arithmatical pastimes N. J. Kuenzi and Bob Frielipp - Pennsylvania School Science and Mathematics Association c1979 - ii,54p.; 24cm.- - Topics for teachers series; no.1 .
513.22 / KUE