Dyfyniad APA

Ricardo, H. J. (2009). Modern introduction to differential equations (23.).

Dyfyniad Arddull Chicago

Ricardo, Hentry J. Modern Introduction to Differential Equations. 23. Elsevier Academic Press, 2009.

Dyfyniad MLA

Ricardo, Hentry J. Modern Introduction to Differential Equations. 23. 2009.

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