Kelly, G. (2001). Differential Equations: An Introduction with Applications. Springer-Verlag.
Cita Chicago (17th ed.)Kelly, G. Differential Equations: An Introduction with Applications. New York: Springer-Verlag, 2001.
Cita MLA (9th ed.)Kelly, G. Differential Equations: An Introduction with Applications. Springer-Verlag, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.