APA-referens (7:e uppl.)

Birkhoff, G. (1978). Ordinary differential equations (3rd ed.). Wiley.

Chicago-referens (17:e uppl.)

Birkhoff, Garrett. Ordinary Differential Equations. 3rd ed. New York: Wiley, 1978.

MLA-referens (9:e uppl.)

Birkhoff, Garrett. Ordinary Differential Equations. 3rd ed. Wiley, 1978.