APA (7th ed.) Citation

ebrary, Inc, Ettema, D., Friman, M., & Gärling, T. (2014). Handbook of sustainable travel. Springer Berlin Heidelberg.

Chicago Style (17th ed.) Citation

ebrary, Inc, Dick Ettema, Margareta Friman, and Tommy Gärling. Handbook of Sustainable Travel. Dordrecht: Springer Berlin Heidelberg, 2014.

MLA (9th ed.) Citation

ebrary, Inc, et al. Handbook of Sustainable Travel. Springer Berlin Heidelberg, 2014.