Cita APA (7a ed.)

Geographical Association, Marvell, A., Watkins, C., & Speake, J. (2006). Sustainable tourism (1. publ. 2005, 1. impr.). Geographical Assoc.

Cita Chicago Style (17a ed.)

Geographical Association, Alan Marvell, Claire Watkins, y Janet Speake. Sustainable Tourism. 1. publ. 2005, 1. impr. Sheffield: Geographical Assoc, 2006.

Cita MLA (9a ed.)

Geographical Association, et al. Sustainable Tourism. 1. publ. 2005, 1. impr. Geographical Assoc, 2006.