Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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