Miller, G., & Twining-Ward, L. (2005). Monitoring for a sustainable tourism transition: The challenge of developing and using indicators. CABI Pub..

Miller, Graham, and Louise Twining-Ward. Monitoring for a Sustainable Tourism Transition: The Challenge of Developing and Using Indicators. Wallingford, UK ; Cambridge, MA: CABI Pub., 2005.

Miller, Graham, and Louise Twining-Ward. Monitoring for a Sustainable Tourism Transition: The Challenge of Developing and Using Indicators. CABI Pub., 2005.