Coddington, E. A. (1961). Introduction to ordinary differential equations (NA.). Dover Publications, INC.
Lua i Stíl Chicago (17ú heag.)Coddington, Earl A. Introduction to Ordinary Differential Equations. NA. New York: Dover Publications, INC, 1961.
Lua MLA (9ú heag.)Coddington, Earl A. Introduction to Ordinary Differential Equations. NA. Dover Publications, INC, 1961.
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