1. AA, 2002. Petrol-driven vehicles estimated on 14,000km per year: first 5 years of ownership. Automobile Association. Retrieved 18 November 2002. Available at www.nzaa.co.nz/Online/Issues/May2002/Stories/Motoring/RunningCost.htm.
2. ACC, 2002. How ACC is funded. Accident Compensation Cooperation. Available at www.acc.co.nz/about-acc/acc-funding.
3. Becker, U., Gerike, R., Rau, A., Zimmermann, F., 2001. Ermittlung der Kosten und Nutzen von Verkehr in Sachsen, Hauptstudie, Arbeitsstand 11/2001. Dresden: Saxon State Agency for Environment and Geology, Department “Integrated Environmental Protection”, Section “Environment and Land Use”.
4. Becker, U., Gerike, R., Rau, A., Zimmermann, F., 2002. Ermittlung der Kosten und Nutzen von Verkehr in Sachsen, Hauptstudie, Endbericht/2002. Dresden: Saxon State Agency for Environment and Geology, Department “Integrated Environmental Protection”, Section “Environment and Land Use”.
5. Climate Change: Economic and Social Dimensions of Climate Change;Bruce,1995