Παραπομπή σε μορφή APA (7η εκδ.)

International Energy Agency & Organisation for Economic Co-operation and Development. (1991). Energy efficiency and the environment. International Energy Agency, Organisation for Economic Co-operation and Development.

Παραπομπή σε μορφή Chicago (17η εκδ.)

International Energy Agency και Organisation for Economic Co-operation and Development. Energy Efficiency and the Environment. Paris: International Energy Agency, Organisation for Economic Co-operation and Development, 1991.

Παραπομπή σε μορφή MLA (9th εκδ.)

International Energy Agency και Organisation for Economic Co-operation and Development. Energy Efficiency and the Environment. International Energy Agency, Organisation for Economic Co-operation and Development, 1991.