Nagle, R. K., Saff, E. B., & Snider, A. D. (2000). Fundamentals of differential equations and boundary value problems (3rd ed.). Addison-Wesley.
Chicago-viite (17. p.)Nagle, R. Kent, E. B. Saff, ja Arthur David Snider. Fundamentals of Differential Equations and Boundary Value Problems. 3rd ed. Reading, Mass.: Addison-Wesley, 2000.
MLA-viite (9. p.)Nagle, R. Kent, et al. Fundamentals of Differential Equations and Boundary Value Problems. 3rd ed. Addison-Wesley, 2000.
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