00432nam a2200145 a 450000500170000000800410001702000150005804100080007308200110008110000270009224500930011925000120021226400370022430000250026120260717092731.0260717s1991    ii            000 0 eng d  a0070575401  aeng04a515.351 aSimmons, George Finlay10aDifferential equations, with applications and historical notes /cSimmons, George Finlay  a2nd ed. 1aNew York :bMcGraw-Hill,cc1991.  axxi, 629 p. ; 24 cm.