Handbook of Sustainable Travel

MLA

Gärling, Tommy, Dick Ettema, and Margareta Friman. Handbook of Sustainable Travel. Springer Netherlands, 2014.

APA

Gärling, T., Ettema, D., & Friman, M. (2014). Handbook of Sustainable Travel. Springer Netherlands.

Chicago

Gärling, Tommy, Dick Ettema, and Margareta Friman. Handbook of Sustainable Travel. : Springer Netherlands, 2014.