00518nam a22002057a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093082001600102100001800118245005000136260003000186300001000216490002800226650003000254830002800284CHAP20220329134626.0971013s1952            r     00010     d  a23192  a24164  a28263  cCHAP  a517.38bA9700aAyres, Frank.  aTheory and problems of differential squations  aNew York :bSchaum,c1952  a296 p  aSchaum's outline series14aEcuaciones diferenciales.0 aSchaum's outline series