Παραπομπή APA

Hengel, T., & Hengl, T. R. (2009). Geomorphometry: Concepts, software,applications. Elsevier.

Παραπομπή Chicago Style

Hengel, Tomislav, και Tomislav Reuter Hengl. Geomorphometry: Concepts, Software,applications. Singapore: Elsevier, 2009.

Παραπομπή MLA

Hengel, Tomislav, και Tomislav Reuter Hengl. Geomorphometry: Concepts, Software,applications. Elsevier, 2009.