Cita APA

SpringerLink (Online service), Gärling, T., Ettema, D., & Friman, M. (2014). Handbook of Sustainable Travel (1st ed. 2014.). Dordrecht: Springer Netherlands : Imprint: Springer.

Citación estilo Chicago

SpringerLink (Online service), Tommy Gärling, Dick Ettema, y Margareta Friman. Handbook of Sustainable Travel. 1st ed. 2014. Dordrecht: Springer Netherlands : Imprint: Springer, 2014.

Cita MLA

SpringerLink (Online service), Tommy Gärling, Dick Ettema, y Margareta Friman. Handbook of Sustainable Travel. 1st ed. 2014. Dordrecht: Springer Netherlands : Imprint: Springer, 2014.