The Penguin Sudoku Challenge: Volume 1
by
David J. Bodycombe
Paperback
details (
UK
).
ISBN: 978-0-14-095835-5
ISBN-10: 0-14-095835-5
Penguin
· 2010
See also:
2011
Paperback
The Penguin Sudoku Challenge: Volume 2 (Penguin Press)