000 00342nam a2200145Ia 4500
100 _aPolya/G
942 _cBK
654 _amathematics
245 _aHow to solve it:A new aspect of mathematical method
260 _bPrincetone univ press
_aNew Jersey
_c1985
082 _a510.01
_bPOL
300 _a253
546 _aENGLISH
999 _c28857
_d28857