Cita APA (7th ed.)

Birkhoff, G., & Rota, G. (1989). Introduction to ordinary differential equations (4th ed.). Wiley.

Cita Chicago (17th ed.)

Birkhoff, Garrett, i Gian-Carlo Rota. Introduction to Ordinary Differential Equations. 4th ed. New York: Wiley, 1989.

Cita MLA (9th ed.)

Birkhoff, Garrett, i Gian-Carlo Rota. Introduction to Ordinary Differential Equations. 4th ed. Wiley, 1989.