Ekins, P. (1996). Environmental taxes and charges national experiences and plans. European Foundation for the improvement of living and Working conditions.
Cita Chicago (17th ed.)Ekins, Paul. Environmental Taxes and Charges National Experiences and Plans. Dublin: European Foundation for the improvement of living and Working conditions, 1996.
Cita MLA (9th ed.)Ekins, Paul. Environmental Taxes and Charges National Experiences and Plans. European Foundation for the improvement of living and Working conditions, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.