Timmerman. (2006). The everything 15-minute sudoku book: Over 200 puzzles with instructions for solving. Avon, Mass.: Adams Media.
Chicago Style CitationTimmerman. The Everything 15-minute Sudoku Book: Over 200 Puzzles With Instructions for Solving. Avon, Mass.: Adams Media, 2006.
MLA CitationTimmerman. The Everything 15-minute Sudoku Book: Over 200 Puzzles With Instructions for Solving. Avon, Mass.: Adams Media, 2006.
Warning: These citations may not always be 100% accurate.