000			00463nam a22002057a 4500
015			_a0001229
016			_aPOL
041			_aENG
080			_a510
100			_aPolya . G _96168
245			_aHow to solve it
260			_aAnchor : _bNew york ; _c1957.
300			_a253 p; 21 cm . _b01
310			_a2025-02-18
852			_aL
999			_c9570 _d9570