Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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