00389nam a2200121Ia 4500082001900000100003500019245010500054260003300159300000600192500000500198700003200203700003200235  a519.3bB514.WW  aBerlekamp, Elwyn R. and Others  aWinning ways for your mathematical playsbcBy Elwyn R. Berlekamp, John H. Conway and Richard K. Guy  aLondonbAcademic Pressc1982  a   a  aConway, John H. ; jt. auth.  aGuy, Richard K. ; jt. auth.