Παραπομπή σε μορφή APA (7η εκδ.)

Billharz, S., Matravers, R., & Moldan, B. (1997). Sustainability indicators: A report of the project on indicators of sustainable development. Wiley.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Billharz, Suzanne, Robyn Matravers, και Bedrich Moldan. Sustainability Indicators: A Report of the Project on Indicators of Sustainable Development. Chichester: Wiley, 1997.

Παραπομπή σε μορφή MLA (8th εκδ.)

Billharz, Suzanne, et al. Sustainability Indicators: A Report of the Project on Indicators of Sustainable Development. Wiley, 1997.