APA (7th ed.) Zitazioa

Gould, W. (2005). Grand master sudoku 2. HarperCollins Publishers.

Chicago Style (17th ed.) Zitazioa

Gould, Wayne. Grand Master Sudoku 2. New York: HarperCollins Publishers, 2005.

MLA (9th ed.) Zitazioa

Gould, Wayne. Grand Master Sudoku 2. HarperCollins Publishers, 2005.