Derrick, W. R., & Grossman, S. I. (1997). Elementary differential equations (4th.ed.). Addison-Wesley.
Chicago Style (17th ed.) CitationDerrick, William R., and Stanley I. Grossman. Elementary Differential Equations. 4th.ed. Massachusetts: Addison-Wesley, 1997.
MLA (9th ed.) CitationDerrick, William R., and Stanley I. Grossman. Elementary Differential Equations. 4th.ed. Addison-Wesley, 1997.
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