APA সাইটেশন

Watkins, J. J. (2004). Across the Board: The Mathematics of chessboard Problems. Universities Press (India) Pvt. Ltd..

শিকাগো স্টাইলে সাইটেশন

Watkins, John J. Across the Board: The Mathematics of Chessboard Problems. Hyderabad: Universities Press (India) Pvt. Ltd., 2004.

এমএলএ সাইটেশন

Watkins, John J. Across the Board: The Mathematics of Chessboard Problems. Universities Press (India) Pvt. Ltd., 2004.