Παραπομπή σε μορφή APA (7η εκδ.)

Energy and Environmental Programme (Royal Institute of International Affairs), Vellinga, P., & Grubb, M. (1993). Climate change policy in the European Community. Royal Institute of International Affairs.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Energy and Environmental Programme (Royal Institute of International Affairs), Pier Vellinga, και Michael Grubb. Climate Change Policy in the European Community. London: Royal Institute of International Affairs, 1993.

Παραπομπή σε μορφή MLA (9th εκδ.)

Energy and Environmental Programme (Royal Institute of International Affairs), et al. Climate Change Policy in the European Community. Royal Institute of International Affairs, 1993.