00419nam a22001457i 4500001001000000005001700010008004100027082002200068100002100090245005600111260003500167300001700202650003600219020001800255SXC00182920260819093319.0260101s1965    ii            000 0 eng d  a515.352 LEI-O222  aLeighton, Walter10aOrdinary differential equations /cLeighton, Walter  abLongman & Co., London,c1965  ap. ;c22 cm. 0aOrdinary differential equations  a9780718510657