Elaydi, Saber, 1943- An introduction to difference equations / Saber Elaydi - 3rd ed. - xxii, 539 páginas ilustraciones - Undergraduate texts in mathematics . ISBN: 0387230599 (papel libre de ácido) Subjects--Topical Terms: Ecuaciones diferenciales LC Class. No.: QA431 / E53 2005 Dewey Class. No.: 515/.625