00481cam a22001813i 45000010005000000030003000050050017000080080041000250350018000660350017000840500020001010800013001211000033001342450052001672600028002193000011002476500041002587328UR20220428112820.0      s1975    mex           000 0 spa d  a(janium) 7317  a(janium)7317 4aQA11b.P64 1982  a37.02:511 aPólya, Georged(1887-1985)10aCómo plantear y resolver problemas/cG. Polya  aMéxicobTrillasc1975  a215 p. 4aMatemáticasxEstudio y enseñanza