00472nam a2200157Ia 4500003000400000005001700004008004100021020001800062082001200080100003500092245007200127260003800199300001500237350000800252655005400260SNU20140311120836.0120327s9999    xx            000 0 und d  a9780486409177  a510 AVE  aAverbach, Bonnie aChein, Orin  aProblem Solving through Recreational MathematicscBonnie Averbach    bDover PublicationaNew Yorkc2000  bxvi; 458p.  a761  bMathematics bRecreational MathematicsbVariables