Παραπομπή σε μορφή APA (7η εκδ.)

Hoel, M. (2009). Climate policy: Costs and design: a survey of some recent numerical studies. Nordic Council of Ministers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hoel, Michael. Climate Policy: Costs and Design: A Survey of Some Recent Numerical Studies. Copenhagen: Nordic Council of Ministers, 2009.

Παραπομπή σε μορφή MLA (9th εκδ.)

Hoel, Michael. Climate Policy: Costs and Design: A Survey of Some Recent Numerical Studies. Nordic Council of Ministers, 2009.