Cita APA (7th ed.)

Birkhoff, G., & Rota, G. (1989). Ordinary Differential Equations (4th ed.). John Wiley & Sons.

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

Birkhoff, Garrett, i Gian-Carlo Rota. Ordinary Differential Equations. 4th ed. John Wiley & Sons, 1989.