Ross, S. L. (2004). Differential equations (3rd.). Wiley.
Lua i Stíl Chicago (17ú heag.)Ross, Shepley L. Differential Equations. 3rd. New Delhi: Wiley, 2004.
Lua MLA (9ú heag.)Ross, Shepley L. Differential Equations. 3rd. Wiley, 2004.
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