Conrad, B. P. (2003). Differential equations: A systems approach. Prentice Hall.
Chicago-viite (17. p.)Conrad, Bruce P. Differential Equations: A Systems Approach. Upper Saddle River, NJ: Prentice Hall, 2003.
MLA-viite (9. p.)Conrad, Bruce P. Differential Equations: A Systems Approach. Prentice Hall, 2003.
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