Boyce, W. E., & DiPrima, R. C. (2010). Elementary differential equations and boundary value problems (9th International student ed.). Wiley.
Lua i Stíl Chicago (17ú heag.)Boyce, William E., agus Richard C. DiPrima. Elementary Differential Equations and Boundary Value Problems. 9th International student ed. Hoboken, N.J: Wiley, 2010.
Lua MLA (9ú heag.)Boyce, William E., agus Richard C. DiPrima. Elementary Differential Equations and Boundary Value Problems. 9th International student ed. Wiley, 2010.
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