Take a look at a good book /

Eitemau Tebyg

• Take a look at a good book /
  gan: Kahan, Steven
  Cyhoeddwyd: (1998)
• Take a look at a good book/
  gan: Kahan, Steven
  Cyhoeddwyd: (1998)
• At last encoded totals second addition /
  gan: Kahan,Steven
  Cyhoeddwyd: (1994)
• Have some sums to solve: the complete alphametics books /
  gan: Kahan,Steven
  Cyhoeddwyd: (1978)
• Take a look at a good book : the third collection of additive alphametics for the connoisseur
  gan: Steven Kahan
  Cyhoeddwyd: (1998)