Ross, S. L. (1989). Introduction to Ordinary Differential Equations (4th ed.). John Wiley & Sons.
Cita Chicago (17th ed.)Ross, S. L. Introduction to Ordinary Differential Equations. 4th ed. New York: John Wiley & Sons, 1989.
Cita MLA (9th ed.)Ross, S. L. Introduction to Ordinary Differential Equations. 4th ed. John Wiley & Sons, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.