APA引文

Perko, L. (1991). Differential equations and dynamical systems. Springer-Verlag.

Chicago Edition Citation

Perko, Lawrence. Differential Equations and Dynamical Systems. New York: Springer-Verlag, 1991.

MLA引文

Perko, Lawrence. Differential Equations and Dynamical Systems. Springer-Verlag, 1991.

警告：這些引文格式不一定是100％准確.