Sánchez, D. A. (1979). Ordinary differential equations and stability theory: An introduction (1a. ed.). Dover Publications Inc.
Cita Chicago (17th ed.)Sánchez, David A. Ordinary Differential Equations and Stability Theory: An Introduction. 1a. ed. Nueva York: Dover Publications Inc, 1979.
Cita MLA (9th ed.)Sánchez, David A. Ordinary Differential Equations and Stability Theory: An Introduction. 1a. ed. Dover Publications Inc, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.