Kahan,Steven. (1978). Have some sums to solve: The complete alphametics books. Universities press.
Chicago Style citaatKahan,Steven. Have Some Sums to Solve: The Complete Alphametics Books. Hyderabad: Universities press, 1978.
MLA citatieKahan,Steven. Have Some Sums to Solve: The Complete Alphametics Books. Universities press, 1978.
Let op: Deze citaties zijn niet altijd 100% accuraat.