Παραπομπή APA

Brauer, F., & Nohel, J. A. (1969). The qualitative theory of ordinary differential equations: An introduction. W. A. Benjamin.

Παραπομπή Chicago Style

Brauer, Fred, και John A. Nohel. The Qualitative Theory of Ordinary Differential Equations: An Introduction. New York: W. A. Benjamin, 1969.

Παραπομπή MLA

Brauer, Fred, και John A. Nohel. The Qualitative Theory of Ordinary Differential Equations: An Introduction. W. A. Benjamin, 1969.