Plaat, O. (1971). Ordinary differential equations. Holden-Day.
Cita Chicago (17th ed.)Plaat, Otto. Ordinary Differential Equations. San Francisco: Holden-Day, 1971.
Cita MLA (9th ed.)Plaat, Otto. Ordinary Differential Equations. Holden-Day, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.