Watkins, J. J. (2004). Across the board: The mathematics of chessboard problems. Princeton University Press.
استشهاد بنمط شيكاغوWatkins, John J. Across the Board: The Mathematics of Chessboard Problems. Princeton: Princeton University Press, 2004.
MLA استشهادWatkins, John J. Across the Board: The Mathematics of Chessboard Problems. Princeton University Press, 2004.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.