APA ציטוט

Watkins, J. (2004). Across the Board: The Mathematics of Chessboard Problems. UP.

Chicago Edition Citation

Watkins, John. Across the Board: The Mathematics of Chessboard Problems. UP, 2004.

ציטוט MLA

Watkins, John. Across the Board: The Mathematics of Chessboard Problems. UP, 2004.