D
Dewi Williams
8 works on record
Works

Preacher's Son
Helyntion Iwerddon
Helyntion Iwerddon
1988
Big Book of 16 × 16 Giant Sudoku
Big Book of 16 × 16 Giant Sudoku
AS-Level Mathematics Revision Guide (AQA C1)
AS-Level Mathematics Revision Guide (AQA C1)
Big Book of Hyper Sudoku
Big Book of Hyper Sudoku
Big Book of 12 × 12 Giant Sudoku
Big Book of 12 × 12 Giant Sudoku
Samurai Sudoku
Samurai Sudoku
Big Book of Sudoku
Big Book of Sudoku