APA (7th ed.) Citation

Bodycombe, D. J. (2006). Sudoku 2007: A year's supply of sudoku. Penguin Books.

Chicago Style (17th ed.) Citation

Bodycombe, David J. Sudoku 2007: A Year's Supply of Sudoku. London: Penguin Books, 2006.

MLA (9th ed.) Citation

Bodycombe, David J. Sudoku 2007: A Year's Supply of Sudoku. Penguin Books, 2006.