APA-viite (7. p.)

(1979). Functional differential equations and approximation of fixed points. Springer-Verlag.

Chicago-viite (17. p.)

Functional Differential Equations and Approximation of Fixed Points. Berlin: Springer-Verlag, 1979.

MLA-viite (9. p.)

Functional Differential Equations and Approximation of Fixed Points. Springer-Verlag, 1979.