Rainville, E. D. (1964). Elementary differential equations (3rd ed.). Macmillan.
Lua i Stíl Chicago (17ú heag.)Rainville, Earl D. Elementary Differential Equations. 3rd ed. New York: Macmillan, 1964.
Lua MLA (9ú heag.)Rainville, Earl D. Elementary Differential Equations. 3rd ed. Macmillan, 1964.
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