APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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