Lua APA (7ú heag.)

Perko, L. (2001). Differential equations and dynamical systems (3rd ed.). Springer-Verlag.

Lua i Stíl Chicago (17ú heag.)

Perko, Lawrence. Differential Equations and Dynamical Systems. 3rd ed. New York: Springer-Verlag, 2001.

Lua MLA (9ú heag.)

Perko, Lawrence. Differential Equations and Dynamical Systems. 3rd ed. Springer-Verlag, 2001.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.