Παραπομπή APA

Castillo, E. (2005). Functional equations in applied sciences. Elsevier.

Παραπομπή Chicago Style

Castillo, Enrique. Functional Equations in Applied Sciences. Amsterdam: Elsevier, 2005.

Παραπομπή MLA

Castillo, Enrique. Functional Equations in Applied Sciences. Elsevier, 2005.