000 00492nam a22001817a 4500
999 _c59117
_d59117
003 WUSLLib
008 170308b xxu||||| |||| 00| 0 eng d
020 _a0691080976
041 _aEnglish
082 _a510.7
_bPOL
100 _aPolya, G.
_93542
245 _aHow to solve it
_ba new aspect of mathematical method
260 _aUSA
_bPrinceton University Press
_c1973
300 _axxi, 253p.
_c21cm.
650 _aMathematics
_93543
650 _aproblem solving
_93544
942 _2ddc
_cL