Edwards, A. (1992). International tourism forecasts to 2005. Economist Intelligence Unit.
Cita Chicago (17th ed.)Edwards, Anthony. International Tourism Forecasts to 2005. London: Economist Intelligence Unit, 1992.
Cita MLA (9th ed.)Edwards, Anthony. International Tourism Forecasts to 2005. Economist Intelligence Unit, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.