000 00424 a2200157 4500
020 _a9780140124996
082 _a510.7
090 _c7051
_d7051
100 _aPolya, George
245 _aHow to solve it: A new aspect of mathematical method.
_c George Polya
260 _aNew York
_bPenguin Group
_c1990
300 _a253 p.
650 _aMathematics--Study and teaching
700 _a George Polya
942 _cBK
_k510.7 POL
999 _c10859
_d10859