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Dyfyniad Arddull ChicagoJozsef Beck. Combinatorial Games: Tic-Tac Toe Theory. Cambridge, 2010.
Dyfyniad MLAJozsef Beck. Combinatorial Games: Tic-Tac Toe Theory. Cambridge, 2010.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.