Cita APA (7a ed.)

SpringerLink (Online service), Barcelo, D., & Petrovic, M. (2011). The Ebro river basin. Springer.

Cita Chicago Style (17a ed.)

SpringerLink (Online service), Damia Barcelo, y Mira Petrovic. The Ebro River Basin. Berlin, Heidelberg: Springer, 2011.

Cita MLA (9a ed.)

SpringerLink (Online service), et al. The Ebro River Basin. Springer, 2011.