Παραπομπή APA

Sanchez, D. (1968). Ordinary differential equations and stability theory. W.H. Freeman and company.

Παραπομπή Chicago Style

Sanchez, D.A. Ordinary Differential Equations and Stability Theory. London: W.H. Freeman and company, 1968.

Παραπομπή MLA

Sanchez, D.A. Ordinary Differential Equations and Stability Theory. W.H. Freeman and company, 1968.