Παραπομπή APA

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

Παραπομπή Chicago Style

Miller, Graham, και Louise Twining-Ward. Monitoring for a Sustainable Tourism Transition: The Challenge of Developing and Using Indicators. UK: CAB International, 2005.

Παραπομπή MLA

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