00424 a2200157 4500 9780140124996 510.7 7051 7051 Polya, George How to solve it: A new aspect of mathematical method. George Polya New York Penguin Group 1990 253 p. Mathematics--Study and teaching George Polya BK 510.7 POL 10859 10859 0 0 0 0 NFIC CL CL GEN 2012-04-19 Eagle Information Marketing 1178.34 7 4 510.7 POL SEECS011214 2023-07-27 2023-06-27 2023-06-27 2017-01-05 BK