Verhulst, F. (1989). Non-linear differential equations and dynamical systems. Springer- Verlag.
Chicago Style aipamenaVerhulst, Ferdinard. Non-linear Differential Equations and Dynamical Systems. New York: Springer- Verlag, 1989.
MLA aipamenaVerhulst, Ferdinard. Non-linear Differential Equations and Dynamical Systems. Springer- Verlag, 1989.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.