Kuenzi, N. J. <br/><br/>
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 .
<br/><br/><label>Dewey Class. No.: </label>513.22  / KUE