Have some sums to solve : the compleat alphametics book
Kahan, Steven
Have some sums to solve : the compleat alphametics book - Hyderabad Universities Press 1978 - xii, 114p. - Recreational mathematics .
8173711372
Puzzles
Have some sums to solve : the compleat alphametics book - Hyderabad Universities Press 1978 - xii, 114p. - Recreational mathematics .
8173711372
Puzzles