00510nam a22001577a 4500 20260420091451.0 260420b |||||||| |||| 00| 0 eng d 0-06-041913-X eng 515.352 ETG/A Etgen, Garrest J. A Introduction to Ordinary Differential Equations with difference equations numerical methods and applications / by Garrest J. Etgen New York Harper& Row, Publishers 1977 x, 517p. BK 45878 45878 0 0 0 0 NFIC PBBCL PBBCL GEN 2026-04-20 0 515.352 ETG/A 045444 2026-04-20 2026-04-20 BK