Have some sums to solve:
Kahan, Steven.
Have some sums to solve: the compleat alphametics book / Steven Kahan. - India: Universities Press, 1998. - xii,. 114 p.. : ill. : 21 cm.
81-7371-137-2
793.74 KAH
Have some sums to solve: the compleat alphametics book / Steven Kahan. - India: Universities Press, 1998. - xii,. 114 p.. : ill. : 21 cm.
81-7371-137-2
793.74 KAH