APA (7th ed.) Citation

(2008). Total sudoku: Over 350 challenging puzzles. Igloo Books ltd.

Chicago Style (17th ed.) Citation

Total Sudoku: Over 350 Challenging Puzzles. Cottage Farm, Sywell: Igloo Books ltd, 2008.

MLA (8th ed.) Citation

Total Sudoku: Over 350 Challenging Puzzles. Igloo Books ltd, 2008.

Warning: These citations may not always be 100% accurate.