TY - BOOK AU - Averbach,Bonnie AU - Averbach,Bonnie; Chein,Orin TI - Problem solving through recreational mathematics SN - 0486409171 (pbk.) PY - 2000/// CY - Mineola, N.Y. PB - Dover Publications KW - Mathematical recreations N1 - Originally published: Mathematics. San Francisco : W. H. Freeman, c1980 ER -