Nagle R.K., Saff E.B., Snider A.D. Fundamentals of Differential Equations and Boundary Value Problems

6th Edition. — Pearson Education, 2011. — 888 p. — ISBN: 0321747747.Fundamentals of Differential Equations presents the basic theory of differential equations and offers a variety of modern applications in science and engineering. Available in two versions, these flexible texts offer the instructor many choices in syllabus design, course emphasis (theory, methodology, applications, and numerical methods), and in using commercially available computer software.