Sánchez, D. A. (1979). Ordinary differential equations and stability theory: An introduction (1a. ed.). Dover Publications Inc.
Lua i Stíl Chicago (17ú heag.)Sánchez, David A. Ordinary Differential Equations and Stability Theory: An Introduction. 1a. ed. Nueva York: Dover Publications Inc, 1979.
Lua MLA (9ú heag.)Sánchez, David A. Ordinary Differential Equations and Stability Theory: An Introduction. 1a. ed. Dover Publications Inc, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.